Home / 90,292.32-124,541.49-61,948.80

Finding the Fourth Proportional to 90,292.32, 124,541.49 and 61,948.80

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Solution

The fourth proportional to 90,292.32, 124,541.49 and 61,948.80 is: 85,446.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,292.32 : 124,541.49 = 61,948.80 : x
  2. Step 2: Convert to fraction form
    90,292.32/124,541.49 = 61,948.80/x
  3. Step 3: Cross multiply
    90,292.32x = 124,541.49 × 61,948.80
  4. Step 4: Simplify right side
    90,292.32x = 7,715,195,855.71
  5. Step 5: Solve for x
    x = 7,715,195,855.71/90,292.32
  6. Step 6: Final answer
    x = 85,446.87

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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.