Home / 90,711.24-136,137.69-62,826.72

Finding the Fourth Proportional to 90,711.24, 136,137.69 and 62,826.72

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Solution

The fourth proportional to 90,711.24, 136,137.69 and 62,826.72 is: 94,289.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,711.24 : 136,137.69 = 62,826.72 : x
  2. Step 2: Convert to fraction form
    90,711.24/136,137.69 = 62,826.72/x
  3. Step 3: Cross multiply
    90,711.24x = 136,137.69 × 62,826.72
  4. Step 4: Simplify right side
    90,711.24x = 8,553,084,531.08
  5. Step 5: Solve for x
    x = 8,553,084,531.08/90,711.24
  6. Step 6: Final answer
    x = 94,289.14

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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.