Home / 60,474.88-90,721.28-18,916.48

Finding the Fourth Proportional to 60,474.88, 90,721.28 and 18,916.48

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Solution

The fourth proportional to 60,474.88, 90,721.28 and 18,916.48 is: 28,377.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,474.88 : 90,721.28 = 18,916.48 : x
  2. Step 2: Convert to fraction form
    60,474.88/90,721.28 = 18,916.48/x
  3. Step 3: Cross multiply
    60,474.88x = 90,721.28 × 18,916.48
  4. Step 4: Simplify right side
    60,474.88x = 1,716,127,278.69
  5. Step 5: Solve for x
    x = 1,716,127,278.69/60,474.88
  6. Step 6: Final answer
    x = 28,377.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.