Home / 52,721.28-72,756.42-28,848.46

Finding the Fourth Proportional to 52,721.28, 72,756.42 and 28,848.46

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Solution

The fourth proportional to 52,721.28, 72,756.42 and 28,848.46 is: 39,811.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,721.28 : 72,756.42 = 28,848.46 : x
  2. Step 2: Convert to fraction form
    52,721.28/72,756.42 = 28,848.46/x
  3. Step 3: Cross multiply
    52,721.28x = 72,756.42 × 28,848.46
  4. Step 4: Simplify right side
    52,721.28x = 2,098,910,672.11
  5. Step 5: Solve for x
    x = 2,098,910,672.11/52,721.28
  6. Step 6: Final answer
    x = 39,811.45

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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.