Home / 83,427.46-115,129.62-45,186.91

Finding the Fourth Proportional to 83,427.46, 115,129.62 and 45,186.91

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Solution

The fourth proportional to 83,427.46, 115,129.62 and 45,186.91 is: 62,357.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,427.46 : 115,129.62 = 45,186.91 : x
  2. Step 2: Convert to fraction form
    83,427.46/115,129.62 = 45,186.91/x
  3. Step 3: Cross multiply
    83,427.46x = 115,129.62 × 45,186.91
  4. Step 4: Simplify right side
    83,427.46x = 5,202,351,946.42
  5. Step 5: Solve for x
    x = 5,202,351,946.42/83,427.46
  6. Step 6: Final answer
    x = 62,357.79

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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.