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Finding the Fourth Proportional to 60,486.04, 90,650.22 and 30,878.92

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Solution

The fourth proportional to 60,486.04, 90,650.22 and 30,878.92 is: 46,278.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,486.04 : 90,650.22 = 30,878.92 : x
  2. Step 2: Convert to fraction form
    60,486.04/90,650.22 = 30,878.92/x
  3. Step 3: Cross multiply
    60,486.04x = 90,650.22 × 30,878.92
  4. Step 4: Simplify right side
    60,486.04x = 2,799,180,891.36
  5. Step 5: Solve for x
    x = 2,799,180,891.36/60,486.04
  6. Step 6: Final answer
    x = 46,278.13

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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.