Home / 90,121.92-124,359.36-52,398.72

Finding the Fourth Proportional to 90,121.92, 124,359.36 and 52,398.72

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Solution

The fourth proportional to 90,121.92, 124,359.36 and 52,398.72 is: 72,305.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,121.92 : 124,359.36 = 52,398.72 : x
  2. Step 2: Convert to fraction form
    90,121.92/124,359.36 = 52,398.72/x
  3. Step 3: Cross multiply
    90,121.92x = 124,359.36 × 52,398.72
  4. Step 4: Simplify right side
    90,121.92x = 6,516,271,284.02
  5. Step 5: Solve for x
    x = 6,516,271,284.02/90,121.92
  6. Step 6: Final answer
    x = 72,305.07

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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.