Home / 85,042.14-127,521.45-31,732.08

Finding the Fourth Proportional to 85,042.14, 127,521.45 and 31,732.08

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Solution

The fourth proportional to 85,042.14, 127,521.45 and 31,732.08 is: 47,582.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,042.14 : 127,521.45 = 31,732.08 : x
  2. Step 2: Convert to fraction form
    85,042.14/127,521.45 = 31,732.08/x
  3. Step 3: Cross multiply
    85,042.14x = 127,521.45 × 31,732.08
  4. Step 4: Simplify right side
    85,042.14x = 4,046,520,853.12
  5. Step 5: Solve for x
    x = 4,046,520,853.12/85,042.14
  6. Step 6: Final answer
    x = 47,582.54

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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.