Home / 90,339.17-124,711.39-63,504.68

Finding the Fourth Proportional to 90,339.17, 124,711.39 and 63,504.68

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Solution

The fourth proportional to 90,339.17, 124,711.39 and 63,504.68 is: 87,666.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,339.17 : 124,711.39 = 63,504.68 : x
  2. Step 2: Convert to fraction form
    90,339.17/124,711.39 = 63,504.68/x
  3. Step 3: Cross multiply
    90,339.17x = 124,711.39 × 63,504.68
  4. Step 4: Simplify right side
    90,339.17x = 7,919,756,443.77
  5. Step 5: Solve for x
    x = 7,919,756,443.77/90,339.17
  6. Step 6: Final answer
    x = 87,666.92

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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.