Home / 51,127.20-76,280.13-45,513.90

Finding the Fourth Proportional to 51,127.20, 76,280.13 and 45,513.90

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Solution

The fourth proportional to 51,127.20, 76,280.13 and 45,513.90 is: 67,905.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,127.20 : 76,280.13 = 45,513.90 : x
  2. Step 2: Convert to fraction form
    51,127.20/76,280.13 = 45,513.90/x
  3. Step 3: Cross multiply
    51,127.20x = 76,280.13 × 45,513.90
  4. Step 4: Simplify right side
    51,127.20x = 3,471,806,208.81
  5. Step 5: Solve for x
    x = 3,471,806,208.81/51,127.20
  6. Step 6: Final answer
    x = 67,905.27

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.