Home / 78,025.28-117,037.76-25,434.72

Finding the Fourth Proportional to 78,025.28, 117,037.76 and 25,434.72

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Solution

The fourth proportional to 78,025.28, 117,037.76 and 25,434.72 is: 38,152.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,025.28 : 117,037.76 = 25,434.72 : x
  2. Step 2: Convert to fraction form
    78,025.28/117,037.76 = 25,434.72/x
  3. Step 3: Cross multiply
    78,025.28x = 117,037.76 × 25,434.72
  4. Step 4: Simplify right side
    78,025.28x = 2,976,822,655.03
  5. Step 5: Solve for x
    x = 2,976,822,655.03/78,025.28
  6. Step 6: Final answer
    x = 38,152.03

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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.