Home / 57,621.91-79,337.29-48,991.12

Finding the Fourth Proportional to 57,621.91, 79,337.29 and 48,991.12

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Solution

The fourth proportional to 57,621.91, 79,337.29 and 48,991.12 is: 67,453.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,621.91 : 79,337.29 = 48,991.12 : x
  2. Step 2: Convert to fraction form
    57,621.91/79,337.29 = 48,991.12/x
  3. Step 3: Cross multiply
    57,621.91x = 79,337.29 × 48,991.12
  4. Step 4: Simplify right side
    57,621.91x = 3,886,822,731.71
  5. Step 5: Solve for x
    x = 3,886,822,731.71/57,621.91
  6. Step 6: Final answer
    x = 67,453.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.