Home / 60,275.36-90,428.07-42,540.66

Finding the Fourth Proportional to 60,275.36, 90,428.07 and 42,540.66

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Solution

The fourth proportional to 60,275.36, 90,428.07 and 42,540.66 is: 63,821.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,275.36 : 90,428.07 = 42,540.66 : x
  2. Step 2: Convert to fraction form
    60,275.36/90,428.07 = 42,540.66/x
  3. Step 3: Cross multiply
    60,275.36x = 90,428.07 × 42,540.66
  4. Step 4: Simplify right side
    60,275.36x = 3,846,869,115.48
  5. Step 5: Solve for x
    x = 3,846,869,115.48/60,275.36
  6. Step 6: Final answer
    x = 63,821.59

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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.