Home / 72,585,317.40-108,752,004.90-61,247,909.40

Finding the Fourth Proportional to 72,585,317.40, 108,752,004.90 and 61,247,909.40

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Solution

The fourth proportional to 72,585,317.40, 108,752,004.90 and 61,247,909.40 is: 91,765,568.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,585,317.40 : 108,752,004.90 = 61,247,909.40 : x
  2. Step 2: Convert to fraction form
    72,585,317.40/108,752,004.90 = 61,247,909.40/x
  3. Step 3: Cross multiply
    72,585,317.40x = 108,752,004.90 × 61,247,909.40
  4. Step 4: Simplify right side
    72,585,317.40x = 6,660,832,943,183,556
  5. Step 5: Solve for x
    x = 6,660,832,943,183,556/72,585,317.40
  6. Step 6: Final answer
    x = 91,765,568.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.