Home / 40,724.86-61,090.02-11,142.95

Finding the Fourth Proportional to 40,724.86, 61,090.02 and 11,142.95

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Solution

The fourth proportional to 40,724.86, 61,090.02 and 11,142.95 is: 16,715.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,724.86 : 61,090.02 = 11,142.95 : x
  2. Step 2: Convert to fraction form
    40,724.86/61,090.02 = 11,142.95/x
  3. Step 3: Cross multiply
    40,724.86x = 61,090.02 × 11,142.95
  4. Step 4: Simplify right side
    40,724.86x = 680,723,031.70
  5. Step 5: Solve for x
    x = 680,723,031.70/40,724.86
  6. Step 6: Final answer
    x = 16,715.17

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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.