Home / 65,268.76-90,049.12-45,118.36

Finding the Fourth Proportional to 65,268.76, 90,049.12 and 45,118.36

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Solution

The fourth proportional to 65,268.76, 90,049.12 and 45,118.36 is: 62,248.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,268.76 : 90,049.12 = 45,118.36 : x
  2. Step 2: Convert to fraction form
    65,268.76/90,049.12 = 45,118.36/x
  3. Step 3: Cross multiply
    65,268.76x = 90,049.12 × 45,118.36
  4. Step 4: Simplify right side
    65,268.76x = 4,062,868,613.84
  5. Step 5: Solve for x
    x = 4,062,868,613.84/65,268.76
  6. Step 6: Final answer
    x = 62,248.29

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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.