Home / 86,542.20-129,813.30-47,176.20

Finding the Fourth Proportional to 86,542.20, 129,813.30 and 47,176.20

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Solution

The fourth proportional to 86,542.20, 129,813.30 and 47,176.20 is: 70,764.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,542.20 : 129,813.30 = 47,176.20 : x
  2. Step 2: Convert to fraction form
    86,542.20/129,813.30 = 47,176.20/x
  3. Step 3: Cross multiply
    86,542.20x = 129,813.30 × 47,176.20
  4. Step 4: Simplify right side
    86,542.20x = 6,124,098,203.46
  5. Step 5: Solve for x
    x = 6,124,098,203.46/86,542.20
  6. Step 6: Final answer
    x = 70,764.30

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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.