Home / 51,487.20-77,114.16-40,324.32

Finding the Fourth Proportional to 51,487.20, 77,114.16 and 40,324.32

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Solution

The fourth proportional to 51,487.20, 77,114.16 and 40,324.32 is: 60,395.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,487.20 : 77,114.16 = 40,324.32 : x
  2. Step 2: Convert to fraction form
    51,487.20/77,114.16 = 40,324.32/x
  3. Step 3: Cross multiply
    51,487.20x = 77,114.16 × 40,324.32
  4. Step 4: Simplify right side
    51,487.20x = 3,109,576,064.37
  5. Step 5: Solve for x
    x = 3,109,576,064.37/51,487.20
  6. Step 6: Final answer
    x = 60,395.13

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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.