Home / 51,977.91-77,966.18-12,534.71

Finding the Fourth Proportional to 51,977.91, 77,966.18 and 12,534.71

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Solution

The fourth proportional to 51,977.91, 77,966.18 and 12,534.71 is: 18,801.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,977.91 : 77,966.18 = 12,534.71 : x
  2. Step 2: Convert to fraction form
    51,977.91/77,966.18 = 12,534.71/x
  3. Step 3: Cross multiply
    51,977.91x = 77,966.18 × 12,534.71
  4. Step 4: Simplify right side
    51,977.91x = 977,283,003.60
  5. Step 5: Solve for x
    x = 977,283,003.60/51,977.91
  6. Step 6: Final answer
    x = 18,801.89

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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.