Home / 71,920.09-99,247.44-45,077.10

Finding the Fourth Proportional to 71,920.09, 99,247.44 and 45,077.10

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Solution

The fourth proportional to 71,920.09, 99,247.44 and 45,077.10 is: 62,204.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,920.09 : 99,247.44 = 45,077.10 : x
  2. Step 2: Convert to fraction form
    71,920.09/99,247.44 = 45,077.10/x
  3. Step 3: Cross multiply
    71,920.09x = 99,247.44 × 45,077.10
  4. Step 4: Simplify right side
    71,920.09x = 4,473,786,777.62
  5. Step 5: Solve for x
    x = 4,473,786,777.62/71,920.09
  6. Step 6: Final answer
    x = 62,204.97

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1.5x scale

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.