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Finding the Fourth Proportional to 73,866.78, 101,935.80 and 40,332.78

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Solution

The fourth proportional to 73,866.78, 101,935.80 and 40,332.78 is: 55,659.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,866.78 : 101,935.80 = 40,332.78 : x
  2. Step 2: Convert to fraction form
    73,866.78/101,935.80 = 40,332.78/x
  3. Step 3: Cross multiply
    73,866.78x = 101,935.80 × 40,332.78
  4. Step 4: Simplify right side
    73,866.78x = 4,111,354,195.52
  5. Step 5: Solve for x
    x = 4,111,354,195.52/73,866.78
  6. Step 6: Final answer
    x = 55,659.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.