Home / 78,344.45-117,535.58-25,751.15

Finding the Fourth Proportional to 78,344.45, 117,535.58 and 25,751.15

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Solution

The fourth proportional to 78,344.45, 117,535.58 and 25,751.15 is: 38,632.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,344.45 : 117,535.58 = 25,751.15 : x
  2. Step 2: Convert to fraction form
    78,344.45/117,535.58 = 25,751.15/x
  3. Step 3: Cross multiply
    78,344.45x = 117,535.58 × 25,751.15
  4. Step 4: Simplify right side
    78,344.45x = 3,026,676,222.16
  5. Step 5: Solve for x
    x = 3,026,676,222.16/78,344.45
  6. Step 6: Final answer
    x = 38,632.94

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1.5x scale

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.