Home / 72,182.61-108,292.36-30,048.68

Finding the Fourth Proportional to 72,182.61, 108,292.36 and 30,048.68

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Solution

The fourth proportional to 72,182.61, 108,292.36 and 30,048.68 is: 45,080.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,182.61 : 108,292.36 = 30,048.68 : x
  2. Step 2: Convert to fraction form
    72,182.61/108,292.36 = 30,048.68/x
  3. Step 3: Cross multiply
    72,182.61x = 108,292.36 × 30,048.68
  4. Step 4: Simplify right side
    72,182.61x = 3,254,042,472.08
  5. Step 5: Solve for x
    x = 3,254,042,472.08/72,182.61
  6. Step 6: Final answer
    x = 45,080.70

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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.