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Finding the Fourth Proportional to 77,397.20, 116,095.80 and 35,925.20

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Solution

The fourth proportional to 77,397.20, 116,095.80 and 35,925.20 is: 53,887.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,397.20 : 116,095.80 = 35,925.20 : x
  2. Step 2: Convert to fraction form
    77,397.20/116,095.80 = 35,925.20/x
  3. Step 3: Cross multiply
    77,397.20x = 116,095.80 × 35,925.20
  4. Step 4: Simplify right side
    77,397.20x = 4,170,764,834.16
  5. Step 5: Solve for x
    x = 4,170,764,834.16/77,397.20
  6. Step 6: Final answer
    x = 53,887.80

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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.