Home / 58,180.72-87,192.25-30,120.48

Finding the Fourth Proportional to 58,180.72, 87,192.25 and 30,120.48

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Solution

The fourth proportional to 58,180.72, 87,192.25 and 30,120.48 is: 45,139.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,180.72 : 87,192.25 = 30,120.48 : x
  2. Step 2: Convert to fraction form
    58,180.72/87,192.25 = 30,120.48/x
  3. Step 3: Cross multiply
    58,180.72x = 87,192.25 × 30,120.48
  4. Step 4: Simplify right side
    58,180.72x = 2,626,272,592.21
  5. Step 5: Solve for x
    x = 2,626,272,592.21/58,180.72
  6. Step 6: Final answer
    x = 45,139.91

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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.