Home / 61,218.30-91,847.30-30,031.68

Finding the Fourth Proportional to 61,218.30, 91,847.30 and 30,031.68

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Solution

The fourth proportional to 61,218.30, 91,847.30 and 30,031.68 is: 45,057.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,218.30 : 91,847.30 = 30,031.68 : x
  2. Step 2: Convert to fraction form
    61,218.30/91,847.30 = 30,031.68/x
  3. Step 3: Cross multiply
    61,218.30x = 91,847.30 × 30,031.68
  4. Step 4: Simplify right side
    61,218.30x = 2,758,328,572.31
  5. Step 5: Solve for x
    x = 2,758,328,572.31/61,218.30
  6. Step 6: Final answer
    x = 45,057.26

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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.