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Finding the Fourth Proportional to 90,418.68, 124,785.36 and 52,695.36

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Solution

The fourth proportional to 90,418.68, 124,785.36 and 52,695.36 is: 72,724.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,418.68 : 124,785.36 = 52,695.36 : x
  2. Step 2: Convert to fraction form
    90,418.68/124,785.36 = 52,695.36/x
  3. Step 3: Cross multiply
    90,418.68x = 124,785.36 × 52,695.36
  4. Step 4: Simplify right side
    90,418.68x = 6,575,609,467.93
  5. Step 5: Solve for x
    x = 6,575,609,467.93/90,418.68
  6. Step 6: Final answer
    x = 72,724.02

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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.