Home / 78,332.16-117,473.36-25,729.40

Finding the Fourth Proportional to 78,332.16, 117,473.36 and 25,729.40

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Solution

The fourth proportional to 78,332.16, 117,473.36 and 25,729.40 is: 38,585.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,332.16 : 117,473.36 = 25,729.40 : x
  2. Step 2: Convert to fraction form
    78,332.16/117,473.36 = 25,729.40/x
  3. Step 3: Cross multiply
    78,332.16x = 117,473.36 × 25,729.40
  4. Step 4: Simplify right side
    78,332.16x = 3,022,519,068.78
  5. Step 5: Solve for x
    x = 3,022,519,068.78/78,332.16
  6. Step 6: Final answer
    x = 38,585.93

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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.