Home / 48,138.88-66,432-26,919.36

Finding the Fourth Proportional to 48,138.88, 66,432 and 26,919.36

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Solution

The fourth proportional to 48,138.88, 66,432 and 26,919.36 is: 37,148.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,138.88 : 66,432 = 26,919.36 : x
  2. Step 2: Convert to fraction form
    48,138.88/66,432 = 26,919.36/x
  3. Step 3: Cross multiply
    48,138.88x = 66,432 × 26,919.36
  4. Step 4: Simplify right side
    48,138.88x = 1,788,306,923.52
  5. Step 5: Solve for x
    x = 1,788,306,923.52/48,138.88
  6. Step 6: Final answer
    x = 37,148.91

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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.