Home / 47,781.04-71,680.21-19,685.49

Finding the Fourth Proportional to 47,781.04, 71,680.21 and 19,685.49

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Solution

The fourth proportional to 47,781.04, 71,680.21 and 19,685.49 is: 29,531.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,781.04 : 71,680.21 = 19,685.49 : x
  2. Step 2: Convert to fraction form
    47,781.04/71,680.21 = 19,685.49/x
  3. Step 3: Cross multiply
    47,781.04x = 71,680.21 × 19,685.49
  4. Step 4: Simplify right side
    47,781.04x = 1,411,060,057.15
  5. Step 5: Solve for x
    x = 1,411,060,057.15/47,781.04
  6. Step 6: Final answer
    x = 29,531.80

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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.