Home / 54,390.70-81,618.40-29,430.24

Finding the Fourth Proportional to 54,390.70, 81,618.40 and 29,430.24

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Solution

The fourth proportional to 54,390.70, 81,618.40 and 29,430.24 is: 44,162.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,390.70 : 81,618.40 = 29,430.24 : x
  2. Step 2: Convert to fraction form
    54,390.70/81,618.40 = 29,430.24/x
  3. Step 3: Cross multiply
    54,390.70x = 81,618.40 × 29,430.24
  4. Step 4: Simplify right side
    54,390.70x = 2,402,049,100.42
  5. Step 5: Solve for x
    x = 2,402,049,100.42/54,390.70
  6. Step 6: Final answer
    x = 44,162.87

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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.