Home / 51,101.10-76,688.10-28,890.90

Finding the Fourth Proportional to 51,101.10, 76,688.10 and 28,890.90

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Solution

The fourth proportional to 51,101.10, 76,688.10 and 28,890.90 is: 43,356.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,101.10 : 76,688.10 = 28,890.90 : x
  2. Step 2: Convert to fraction form
    51,101.10/76,688.10 = 28,890.90/x
  3. Step 3: Cross multiply
    51,101.10x = 76,688.10 × 28,890.90
  4. Step 4: Simplify right side
    51,101.10x = 2,215,588,228.29
  5. Step 5: Solve for x
    x = 2,215,588,228.29/51,101.10
  6. Step 6: Final answer
    x = 43,356.96

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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.