Home / 51,151.74-70,589.18-28,491

Finding the Fourth Proportional to 51,151.74, 70,589.18 and 28,491

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Solution

The fourth proportional to 51,151.74, 70,589.18 and 28,491 is: 39,317.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,151.74 : 70,589.18 = 28,491 : x
  2. Step 2: Convert to fraction form
    51,151.74/70,589.18 = 28,491/x
  3. Step 3: Cross multiply
    51,151.74x = 70,589.18 × 28,491
  4. Step 4: Simplify right side
    51,151.74x = 2,011,156,327.38
  5. Step 5: Solve for x
    x = 2,011,156,327.38/51,151.74
  6. Step 6: Final answer
    x = 39,317.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.