Home / 90,125.92-124,364.88-52,402.72

Finding the Fourth Proportional to 90,125.92, 124,364.88 and 52,402.72

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Solution

The fourth proportional to 90,125.92, 124,364.88 and 52,402.72 is: 72,310.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,125.92 : 124,364.88 = 52,402.72 : x
  2. Step 2: Convert to fraction form
    90,125.92/124,364.88 = 52,402.72/x
  3. Step 3: Cross multiply
    90,125.92x = 124,364.88 × 52,402.72
  4. Step 4: Simplify right side
    90,125.92x = 6,517,057,984.47
  5. Step 5: Solve for x
    x = 6,517,057,984.47/90,125.92
  6. Step 6: Final answer
    x = 72,310.58

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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.