Home / 53,319.18-79,989.57-15,879.90

Finding the Fourth Proportional to 53,319.18, 79,989.57 and 15,879.90

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Solution

The fourth proportional to 53,319.18, 79,989.57 and 15,879.90 is: 23,823.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,319.18 : 79,989.57 = 15,879.90 : x
  2. Step 2: Convert to fraction form
    53,319.18/79,989.57 = 15,879.90/x
  3. Step 3: Cross multiply
    53,319.18x = 79,989.57 × 15,879.90
  4. Step 4: Simplify right side
    53,319.18x = 1,270,226,372.64
  5. Step 5: Solve for x
    x = 1,270,226,372.64/53,319.18
  6. Step 6: Final answer
    x = 23,823.07

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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.