Home / 87,934.34-121,343.63-56,099.81

Finding the Fourth Proportional to 87,934.34, 121,343.63 and 56,099.81

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Solution

The fourth proportional to 87,934.34, 121,343.63 and 56,099.81 is: 77,414.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,934.34 : 121,343.63 = 56,099.81 : x
  2. Step 2: Convert to fraction form
    87,934.34/121,343.63 = 56,099.81/x
  3. Step 3: Cross multiply
    87,934.34x = 121,343.63 × 56,099.81
  4. Step 4: Simplify right side
    87,934.34x = 6,807,354,610.57
  5. Step 5: Solve for x
    x = 6,807,354,610.57/87,934.34
  6. Step 6: Final answer
    x = 77,414.06

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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.