Home / 53,190.68-79,718.18-28,242.68

Finding the Fourth Proportional to 53,190.68, 79,718.18 and 28,242.68

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Solution

The fourth proportional to 53,190.68, 79,718.18 and 28,242.68 is: 42,327.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,190.68 : 79,718.18 = 28,242.68 : x
  2. Step 2: Convert to fraction form
    53,190.68/79,718.18 = 28,242.68/x
  3. Step 3: Cross multiply
    53,190.68x = 79,718.18 × 28,242.68
  4. Step 4: Simplify right side
    53,190.68x = 2,251,454,508.12
  5. Step 5: Solve for x
    x = 2,251,454,508.12/53,190.68
  6. Step 6: Final answer
    x = 42,327.99

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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.