Home / 75,045.43-112,512.25-45,456.13

Finding the Fourth Proportional to 75,045.43, 112,512.25 and 45,456.13

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Solution

The fourth proportional to 75,045.43, 112,512.25 and 45,456.13 is: 68,150.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,045.43 : 112,512.25 = 45,456.13 : x
  2. Step 2: Convert to fraction form
    75,045.43/112,512.25 = 45,456.13/x
  3. Step 3: Cross multiply
    75,045.43x = 112,512.25 × 45,456.13
  4. Step 4: Simplify right side
    75,045.43x = 5,114,371,462.59
  5. Step 5: Solve for x
    x = 5,114,371,462.59/75,045.43
  6. Step 6: Final answer
    x = 68,150.34

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1.5x scale

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.