Home / 65,562.18-90,471.15-38,703.30

Finding the Fourth Proportional to 65,562.18, 90,471.15 and 38,703.30

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Solution

The fourth proportional to 65,562.18, 90,471.15 and 38,703.30 is: 53,407.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,562.18 : 90,471.15 = 38,703.30 : x
  2. Step 2: Convert to fraction form
    65,562.18/90,471.15 = 38,703.30/x
  3. Step 3: Cross multiply
    65,562.18x = 90,471.15 × 38,703.30
  4. Step 4: Simplify right side
    65,562.18x = 3,501,532,059.80
  5. Step 5: Solve for x
    x = 3,501,532,059.80/65,562.18
  6. Step 6: Final answer
    x = 53,407.80

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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.