Home / 74,975.05-112,407.02-45,385.88

Finding the Fourth Proportional to 74,975.05, 112,407.02 and 45,385.88

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Solution

The fourth proportional to 74,975.05, 112,407.02 and 45,385.88 is: 68,045.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,975.05 : 112,407.02 = 45,385.88 : x
  2. Step 2: Convert to fraction form
    74,975.05/112,407.02 = 45,385.88/x
  3. Step 3: Cross multiply
    74,975.05x = 112,407.02 × 45,385.88
  4. Step 4: Simplify right side
    74,975.05x = 5,101,691,293.95
  5. Step 5: Solve for x
    x = 5,101,691,293.95/74,975.05
  6. Step 6: Final answer
    x = 68,045.19

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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.