Home / 52,631.11-72,631.44-28,757.78

Finding the Fourth Proportional to 52,631.11, 72,631.44 and 28,757.78

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Solution

The fourth proportional to 52,631.11, 72,631.44 and 28,757.78 is: 39,686.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,631.11 : 72,631.44 = 28,757.78 : x
  2. Step 2: Convert to fraction form
    52,631.11/72,631.44 = 28,757.78/x
  3. Step 3: Cross multiply
    52,631.11x = 72,631.44 × 28,757.78
  4. Step 4: Simplify right side
    52,631.11x = 2,088,718,465.66
  5. Step 5: Solve for x
    x = 2,088,718,465.66/52,631.11
  6. Step 6: Final answer
    x = 39,686.01

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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.