Home / 40,823.48-61,240.50-28,149.68

Finding the Fourth Proportional to 40,823.48, 61,240.50 and 28,149.68

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Solution

The fourth proportional to 40,823.48, 61,240.50 and 28,149.68 is: 42,228.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,823.48 : 61,240.50 = 28,149.68 : x
  2. Step 2: Convert to fraction form
    40,823.48/61,240.50 = 28,149.68/x
  3. Step 3: Cross multiply
    40,823.48x = 61,240.50 × 28,149.68
  4. Step 4: Simplify right side
    40,823.48x = 1,723,900,478.04
  5. Step 5: Solve for x
    x = 1,723,900,478.04/40,823.48
  6. Step 6: Final answer
    x = 42,228.16

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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.