Home / 89,981.32-124,149.22-51,738.76

Finding the Fourth Proportional to 89,981.32, 124,149.22 and 51,738.76

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Solution

The fourth proportional to 89,981.32, 124,149.22 and 51,738.76 is: 71,385.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,981.32 : 124,149.22 = 51,738.76 : x
  2. Step 2: Convert to fraction form
    89,981.32/124,149.22 = 51,738.76/x
  3. Step 3: Cross multiply
    89,981.32x = 124,149.22 × 51,738.76
  4. Step 4: Simplify right side
    89,981.32x = 6,423,326,697.77
  5. Step 5: Solve for x
    x = 6,423,326,697.77/89,981.32
  6. Step 6: Final answer
    x = 71,385.11

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1.5x scale

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.