Home / 53,420.40-80,126.82-18,359.28

Finding the Fourth Proportional to 53,420.40, 80,126.82 and 18,359.28

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Solution

The fourth proportional to 53,420.40, 80,126.82 and 18,359.28 is: 27,537.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,420.40 : 80,126.82 = 18,359.28 : x
  2. Step 2: Convert to fraction form
    53,420.40/80,126.82 = 18,359.28/x
  3. Step 3: Cross multiply
    53,420.40x = 80,126.82 × 18,359.28
  4. Step 4: Simplify right side
    53,420.40x = 1,471,070,723.89
  5. Step 5: Solve for x
    x = 1,471,070,723.89/53,420.40
  6. Step 6: Final answer
    x = 27,537.62

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1.5x scale

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.