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Finding the Fourth Proportional to 81,523.52, 112,521.12 and 48,008.96

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Solution

The fourth proportional to 81,523.52, 112,521.12 and 48,008.96 is: 66,263.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,523.52 : 112,521.12 = 48,008.96 : x
  2. Step 2: Convert to fraction form
    81,523.52/112,521.12 = 48,008.96/x
  3. Step 3: Cross multiply
    81,523.52x = 112,521.12 × 48,008.96
  4. Step 4: Simplify right side
    81,523.52x = 5,402,021,949.24
  5. Step 5: Solve for x
    x = 5,402,021,949.24/81,523.52
  6. Step 6: Final answer
    x = 66,263.36

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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.