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Finding the Fourth Proportional to 73,841.76, 101,888 and 42,008.80

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Solution

The fourth proportional to 73,841.76, 101,888 and 42,008.80 is: 57,964.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,841.76 : 101,888 = 42,008.80 : x
  2. Step 2: Convert to fraction form
    73,841.76/101,888 = 42,008.80/x
  3. Step 3: Cross multiply
    73,841.76x = 101,888 × 42,008.80
  4. Step 4: Simplify right side
    73,841.76x = 4,280,192,614.40
  5. Step 5: Solve for x
    x = 4,280,192,614.40/73,841.76
  6. Step 6: Final answer
    x = 57,964.39

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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.