Home / 65,398.22-90,247.84-38,179.52

Finding the Fourth Proportional to 65,398.22, 90,247.84 and 38,179.52

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Solution

The fourth proportional to 65,398.22, 90,247.84 and 38,179.52 is: 52,686.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,398.22 : 90,247.84 = 38,179.52 : x
  2. Step 2: Convert to fraction form
    65,398.22/90,247.84 = 38,179.52/x
  3. Step 3: Cross multiply
    65,398.22x = 90,247.84 × 38,179.52
  4. Step 4: Simplify right side
    65,398.22x = 3,445,618,665.55
  5. Step 5: Solve for x
    x = 3,445,618,665.55/65,398.22
  6. Step 6: Final answer
    x = 52,686.74

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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.