Home / 65,236.38-90,043.92-38,387.52

Finding the Fourth Proportional to 65,236.38, 90,043.92 and 38,387.52

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Solution

The fourth proportional to 65,236.38, 90,043.92 and 38,387.52 is: 52,985.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,236.38 : 90,043.92 = 38,387.52 : x
  2. Step 2: Convert to fraction form
    65,236.38/90,043.92 = 38,387.52/x
  3. Step 3: Cross multiply
    65,236.38x = 90,043.92 × 38,387.52
  4. Step 4: Simplify right side
    65,236.38x = 3,456,562,779.88
  5. Step 5: Solve for x
    x = 3,456,562,779.88/65,236.38
  6. Step 6: Final answer
    x = 52,985.20

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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.