Home / 85,107.48-127,740.10-43,016.89

Finding the Fourth Proportional to 85,107.48, 127,740.10 and 43,016.89

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Solution

The fourth proportional to 85,107.48, 127,740.10 and 43,016.89 is: 64,565.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,107.48 : 127,740.10 = 43,016.89 : x
  2. Step 2: Convert to fraction form
    85,107.48/127,740.10 = 43,016.89/x
  3. Step 3: Cross multiply
    85,107.48x = 127,740.10 × 43,016.89
  4. Step 4: Simplify right side
    85,107.48x = 5,494,981,830.29
  5. Step 5: Solve for x
    x = 5,494,981,830.29/85,107.48
  6. Step 6: Final answer
    x = 64,565.20

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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.