Home / 71,210.61-98,269.20-39,380.04

Finding the Fourth Proportional to 71,210.61, 98,269.20 and 39,380.04

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Solution

The fourth proportional to 71,210.61, 98,269.20 and 39,380.04 is: 54,343.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,210.61 : 98,269.20 = 39,380.04 : x
  2. Step 2: Convert to fraction form
    71,210.61/98,269.20 = 39,380.04/x
  3. Step 3: Cross multiply
    71,210.61x = 98,269.20 × 39,380.04
  4. Step 4: Simplify right side
    71,210.61x = 3,869,845,026.77
  5. Step 5: Solve for x
    x = 3,869,845,026.77/71,210.61
  6. Step 6: Final answer
    x = 54,343.66

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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.