Home / 52,789.16-72,849.84-28,915.76

Finding the Fourth Proportional to 52,789.16, 72,849.84 and 28,915.76

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Solution

The fourth proportional to 52,789.16, 72,849.84 and 28,915.76 is: 39,904.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,789.16 : 72,849.84 = 28,915.76 : x
  2. Step 2: Convert to fraction form
    52,789.16/72,849.84 = 28,915.76/x
  3. Step 3: Cross multiply
    52,789.16x = 72,849.84 × 28,915.76
  4. Step 4: Simplify right side
    52,789.16x = 2,106,508,489.48
  5. Step 5: Solve for x
    x = 2,106,508,489.48/52,789.16
  6. Step 6: Final answer
    x = 39,904.19

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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.