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Finding the Fourth Proportional to 82,977.40, 124,543.86 and 43,562.80

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Solution

The fourth proportional to 82,977.40, 124,543.86 and 43,562.80 is: 65,385.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,977.40 : 124,543.86 = 43,562.80 : x
  2. Step 2: Convert to fraction form
    82,977.40/124,543.86 = 43,562.80/x
  3. Step 3: Cross multiply
    82,977.40x = 124,543.86 × 43,562.80
  4. Step 4: Simplify right side
    82,977.40x = 5,425,479,264.41
  5. Step 5: Solve for x
    x = 5,425,479,264.41/82,977.40
  6. Step 6: Final answer
    x = 65,385.02

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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.