Home / 75,211.72-103,803.06-43,374.28

Finding the Fourth Proportional to 75,211.72, 103,803.06 and 43,374.28

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Solution

The fourth proportional to 75,211.72, 103,803.06 and 43,374.28 is: 59,862.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,211.72 : 103,803.06 = 43,374.28 : x
  2. Step 2: Convert to fraction form
    75,211.72/103,803.06 = 43,374.28/x
  3. Step 3: Cross multiply
    75,211.72x = 103,803.06 × 43,374.28
  4. Step 4: Simplify right side
    75,211.72x = 4,502,382,989.30
  5. Step 5: Solve for x
    x = 4,502,382,989.30/75,211.72
  6. Step 6: Final answer
    x = 59,862.78

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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.