Home / 81,032.72-111,830.76-45,229.73

Finding the Fourth Proportional to 81,032.72, 111,830.76 and 45,229.73

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Solution

The fourth proportional to 81,032.72, 111,830.76 and 45,229.73 is: 62,420.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,032.72 : 111,830.76 = 45,229.73 : x
  2. Step 2: Convert to fraction form
    81,032.72/111,830.76 = 45,229.73/x
  3. Step 3: Cross multiply
    81,032.72x = 111,830.76 × 45,229.73
  4. Step 4: Simplify right side
    81,032.72x = 5,058,074,521.34
  5. Step 5: Solve for x
    x = 5,058,074,521.34/81,032.72
  6. Step 6: Final answer
    x = 62,420.15

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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.