Home / 42,371.56-63,557.70-10,781.66

Finding the Fourth Proportional to 42,371.56, 63,557.70 and 10,781.66

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Solution

The fourth proportional to 42,371.56, 63,557.70 and 10,781.66 is: 16,172.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,371.56 : 63,557.70 = 10,781.66 : x
  2. Step 2: Convert to fraction form
    42,371.56/63,557.70 = 10,781.66/x
  3. Step 3: Cross multiply
    42,371.56x = 63,557.70 × 10,781.66
  4. Step 4: Simplify right side
    42,371.56x = 685,257,511.78
  5. Step 5: Solve for x
    x = 685,257,511.78/42,371.56
  6. Step 6: Final answer
    x = 16,172.58

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1.5x scale

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.