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Finding the Fourth Proportional to 73,865.76, 101,930.04 and 40,331.76

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Solution

The fourth proportional to 73,865.76, 101,930.04 and 40,331.76 is: 55,655.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,865.76 : 101,930.04 = 40,331.76 : x
  2. Step 2: Convert to fraction form
    73,865.76/101,930.04 = 40,331.76/x
  3. Step 3: Cross multiply
    73,865.76x = 101,930.04 × 40,331.76
  4. Step 4: Simplify right side
    73,865.76x = 4,111,017,910.07
  5. Step 5: Solve for x
    x = 4,111,017,910.07/73,865.76
  6. Step 6: Final answer
    x = 55,655.26

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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.