Home / 42,072.15-63,151.02-21,027.29

Finding the Fourth Proportional to 42,072.15, 63,151.02 and 21,027.29

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Solution

The fourth proportional to 42,072.15, 63,151.02 and 21,027.29 is: 31,562.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,072.15 : 63,151.02 = 21,027.29 : x
  2. Step 2: Convert to fraction form
    42,072.15/63,151.02 = 21,027.29/x
  3. Step 3: Cross multiply
    42,072.15x = 63,151.02 × 21,027.29
  4. Step 4: Simplify right side
    42,072.15x = 1,327,894,969.21
  5. Step 5: Solve for x
    x = 1,327,894,969.21/42,072.15
  6. Step 6: Final answer
    x = 31,562.33

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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.