Home / 51,781.28-77,749.68-29,619.68

Finding the Fourth Proportional to 51,781.28, 77,749.68 and 29,619.68

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Solution

The fourth proportional to 51,781.28, 77,749.68 and 29,619.68 is: 44,474.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,781.28 : 77,749.68 = 29,619.68 : x
  2. Step 2: Convert to fraction form
    51,781.28/77,749.68 = 29,619.68/x
  3. Step 3: Cross multiply
    51,781.28x = 77,749.68 × 29,619.68
  4. Step 4: Simplify right side
    51,781.28x = 2,302,920,641.70
  5. Step 5: Solve for x
    x = 2,302,920,641.70/51,781.28
  6. Step 6: Final answer
    x = 44,474.00

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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.