Home / 67,489.40-93,147.30-38,806.80

Finding the Fourth Proportional to 67,489.40, 93,147.30 and 38,806.80

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Solution

The fourth proportional to 67,489.40, 93,147.30 and 38,806.80 is: 53,560.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,489.40 : 93,147.30 = 38,806.80 : x
  2. Step 2: Convert to fraction form
    67,489.40/93,147.30 = 38,806.80/x
  3. Step 3: Cross multiply
    67,489.40x = 93,147.30 × 38,806.80
  4. Step 4: Simplify right side
    67,489.40x = 3,614,748,292.34
  5. Step 5: Solve for x
    x = 3,614,748,292.34/67,489.40
  6. Step 6: Final answer
    x = 53,560.24

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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.