Home / 74,974.17-112,405.71-45,385.02

Finding the Fourth Proportional to 74,974.17, 112,405.71 and 45,385.02

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Solution

The fourth proportional to 74,974.17, 112,405.71 and 45,385.02 is: 68,043.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,974.17 : 112,405.71 = 45,385.02 : x
  2. Step 2: Convert to fraction form
    74,974.17/112,405.71 = 45,385.02/x
  3. Step 3: Cross multiply
    74,974.17x = 112,405.71 × 45,385.02
  4. Step 4: Simplify right side
    74,974.17x = 5,101,535,396.46
  5. Step 5: Solve for x
    x = 5,101,535,396.46/74,974.17
  6. Step 6: Final answer
    x = 68,043.91

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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.