Home / 101,542.48-140,126.42-56,217.80

Finding the Fourth Proportional to 101,542.48, 140,126.42 and 56,217.80

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Solution

The fourth proportional to 101,542.48, 140,126.42 and 56,217.80 is: 77,579.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,542.48 : 140,126.42 = 56,217.80 : x
  2. Step 2: Convert to fraction form
    101,542.48/140,126.42 = 56,217.80/x
  3. Step 3: Cross multiply
    101,542.48x = 140,126.42 × 56,217.80
  4. Step 4: Simplify right side
    101,542.48x = 7,877,599,545.14
  5. Step 5: Solve for x
    x = 7,877,599,545.14/101,542.48
  6. Step 6: Final answer
    x = 77,579.35

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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.