Home / 53,003.90-79,505.29-13,560.70

Finding the Fourth Proportional to 53,003.90, 79,505.29 and 13,560.70

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Solution

The fourth proportional to 53,003.90, 79,505.29 and 13,560.70 is: 20,340.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,003.90 : 79,505.29 = 13,560.70 : x
  2. Step 2: Convert to fraction form
    53,003.90/79,505.29 = 13,560.70/x
  3. Step 3: Cross multiply
    53,003.90x = 79,505.29 × 13,560.70
  4. Step 4: Simplify right side
    53,003.90x = 1,078,147,386.10
  5. Step 5: Solve for x
    x = 1,078,147,386.10/53,003.90
  6. Step 6: Final answer
    x = 20,340.91

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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.