Home / 79,288.64-118,948.16-31,907.52

Finding the Fourth Proportional to 79,288.64, 118,948.16 and 31,907.52

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Solution

The fourth proportional to 79,288.64, 118,948.16 and 31,907.52 is: 47,867.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,288.64 : 118,948.16 = 31,907.52 : x
  2. Step 2: Convert to fraction form
    79,288.64/118,948.16 = 31,907.52/x
  3. Step 3: Cross multiply
    79,288.64x = 118,948.16 × 31,907.52
  4. Step 4: Simplify right side
    79,288.64x = 3,795,340,794.16
  5. Step 5: Solve for x
    x = 3,795,340,794.16/79,288.64
  6. Step 6: Final answer
    x = 47,867.40

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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.