Home / 67,581.90-101,302.32-30,159.48

Finding the Fourth Proportional to 67,581.90, 101,302.32 and 30,159.48

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Solution

The fourth proportional to 67,581.90, 101,302.32 and 30,159.48 is: 45,207.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,581.90 : 101,302.32 = 30,159.48 : x
  2. Step 2: Convert to fraction form
    67,581.90/101,302.32 = 30,159.48/x
  3. Step 3: Cross multiply
    67,581.90x = 101,302.32 × 30,159.48
  4. Step 4: Simplify right side
    67,581.90x = 3,055,225,293.99
  5. Step 5: Solve for x
    x = 3,055,225,293.99/67,581.90
  6. Step 6: Final answer
    x = 45,207.74

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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.