Home / 91,422.55-137,079.15-47,135.80

Finding the Fourth Proportional to 91,422.55, 137,079.15 and 47,135.80

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Solution

The fourth proportional to 91,422.55, 137,079.15 and 47,135.80 is: 70,675.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,422.55 : 137,079.15 = 47,135.80 : x
  2. Step 2: Convert to fraction form
    91,422.55/137,079.15 = 47,135.80/x
  3. Step 3: Cross multiply
    91,422.55x = 137,079.15 × 47,135.80
  4. Step 4: Simplify right side
    91,422.55x = 6,461,335,398.57
  5. Step 5: Solve for x
    x = 6,461,335,398.57/91,422.55
  6. Step 6: Final answer
    x = 70,675.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.