Home / 51,212.10-76,818.15-47,712.90

Finding the Fourth Proportional to 51,212.10, 76,818.15 and 47,712.90

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Solution

The fourth proportional to 51,212.10, 76,818.15 and 47,712.90 is: 71,569.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,212.10 : 76,818.15 = 47,712.90 : x
  2. Step 2: Convert to fraction form
    51,212.10/76,818.15 = 47,712.90/x
  3. Step 3: Cross multiply
    51,212.10x = 76,818.15 × 47,712.90
  4. Step 4: Simplify right side
    51,212.10x = 3,665,216,709.14
  5. Step 5: Solve for x
    x = 3,665,216,709.14/51,212.10
  6. Step 6: Final answer
    x = 71,569.35

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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.