Home / 71,019.02-98,006.12-39,187.89

Finding the Fourth Proportional to 71,019.02, 98,006.12 and 39,187.89

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Solution

The fourth proportional to 71,019.02, 98,006.12 and 39,187.89 is: 54,079.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,019.02 : 98,006.12 = 39,187.89 : x
  2. Step 2: Convert to fraction form
    71,019.02/98,006.12 = 39,187.89/x
  3. Step 3: Cross multiply
    71,019.02x = 98,006.12 × 39,187.89
  4. Step 4: Simplify right side
    71,019.02x = 3,840,652,853.95
  5. Step 5: Solve for x
    x = 3,840,652,853.95/71,019.02
  6. Step 6: Final answer
    x = 54,079.22

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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.