Home / 90,549.06-124,972.50-50,275.86

Finding the Fourth Proportional to 90,549.06, 124,972.50 and 50,275.86

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Solution

The fourth proportional to 90,549.06, 124,972.50 and 50,275.86 is: 69,388.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,549.06 : 124,972.50 = 50,275.86 : x
  2. Step 2: Convert to fraction form
    90,549.06/124,972.50 = 50,275.86/x
  3. Step 3: Cross multiply
    90,549.06x = 124,972.50 × 50,275.86
  4. Step 4: Simplify right side
    90,549.06x = 6,283,099,913.85
  5. Step 5: Solve for x
    x = 6,283,099,913.85/90,549.06
  6. Step 6: Final answer
    x = 69,388.90

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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.