Home / 86,423.10-129,632.18-47,228.42

Finding the Fourth Proportional to 86,423.10, 129,632.18 and 47,228.42

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Solution

The fourth proportional to 86,423.10, 129,632.18 and 47,228.42 is: 70,841.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,423.10 : 129,632.18 = 47,228.42 : x
  2. Step 2: Convert to fraction form
    86,423.10/129,632.18 = 47,228.42/x
  3. Step 3: Cross multiply
    86,423.10x = 129,632.18 × 47,228.42
  4. Step 4: Simplify right side
    86,423.10x = 6,122,323,042.56
  5. Step 5: Solve for x
    x = 6,122,323,042.56/86,423.10
  6. Step 6: Final answer
    x = 70,841.28

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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.