Home / 90,532.52-124,949.90-52,806.78

Finding the Fourth Proportional to 90,532.52, 124,949.90 and 52,806.78

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Solution

The fourth proportional to 90,532.52, 124,949.90 and 52,806.78 is: 72,882.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,532.52 : 124,949.90 = 52,806.78 : x
  2. Step 2: Convert to fraction form
    90,532.52/124,949.90 = 52,806.78/x
  3. Step 3: Cross multiply
    90,532.52x = 124,949.90 × 52,806.78
  4. Step 4: Simplify right side
    90,532.52x = 6,598,201,880.32
  5. Step 5: Solve for x
    x = 6,598,201,880.32/90,532.52
  6. Step 6: Final answer
    x = 72,882.12

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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.