Home / 75,045.36-112,512.15-45,456.06

Finding the Fourth Proportional to 75,045.36, 112,512.15 and 45,456.06

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Solution

The fourth proportional to 75,045.36, 112,512.15 and 45,456.06 is: 68,150.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,045.36 : 112,512.15 = 45,456.06 : x
  2. Step 2: Convert to fraction form
    75,045.36/112,512.15 = 45,456.06/x
  3. Step 3: Cross multiply
    75,045.36x = 112,512.15 × 45,456.06
  4. Step 4: Simplify right side
    75,045.36x = 5,114,359,041.13
  5. Step 5: Solve for x
    x = 5,114,359,041.13/75,045.36
  6. Step 6: Final answer
    x = 68,150.24

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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.