Home / 89,931.17-124,104.35-49,644.92

Finding the Fourth Proportional to 89,931.17, 124,104.35 and 49,644.92

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Solution

The fourth proportional to 89,931.17, 124,104.35 and 49,644.92 is: 68,509.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,931.17 : 124,104.35 = 49,644.92 : x
  2. Step 2: Convert to fraction form
    89,931.17/124,104.35 = 49,644.92/x
  3. Step 3: Cross multiply
    89,931.17x = 124,104.35 × 49,644.92
  4. Step 4: Simplify right side
    89,931.17x = 6,161,150,961.78
  5. Step 5: Solve for x
    x = 6,161,150,961.78/89,931.17
  6. Step 6: Final answer
    x = 68,509.63

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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.