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Finding the Fourth Proportional to 81,525.96, 112,521.96 and 52,881.12

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Solution

The fourth proportional to 81,525.96, 112,521.96 and 52,881.12 is: 72,986.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,525.96 : 112,521.96 = 52,881.12 : x
  2. Step 2: Convert to fraction form
    81,525.96/112,521.96 = 52,881.12/x
  3. Step 3: Cross multiply
    81,525.96x = 112,521.96 × 52,881.12
  4. Step 4: Simplify right side
    81,525.96x = 5,950,287,269.40
  5. Step 5: Solve for x
    x = 5,950,287,269.40/81,525.96
  6. Step 6: Final answer
    x = 72,986.41

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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.