Home / 80,885.39-111,661.34-62,695.08

Finding the Fourth Proportional to 80,885.39, 111,661.34 and 62,695.08

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Solution

The fourth proportional to 80,885.39, 111,661.34 and 62,695.08 is: 86,549.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,885.39 : 111,661.34 = 62,695.08 : x
  2. Step 2: Convert to fraction form
    80,885.39/111,661.34 = 62,695.08/x
  3. Step 3: Cross multiply
    80,885.39x = 111,661.34 × 62,695.08
  4. Step 4: Simplify right side
    80,885.39x = 7,000,616,330.73
  5. Step 5: Solve for x
    x = 7,000,616,330.73/80,885.39
  6. Step 6: Final answer
    x = 86,549.83

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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.