Home / 52,708.89-78,936.63-30,151.20

Finding the Fourth Proportional to 52,708.89, 78,936.63 and 30,151.20

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Solution

The fourth proportional to 52,708.89, 78,936.63 and 30,151.20 is: 45,154.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,708.89 : 78,936.63 = 30,151.20 : x
  2. Step 2: Convert to fraction form
    52,708.89/78,936.63 = 30,151.20/x
  3. Step 3: Cross multiply
    52,708.89x = 78,936.63 × 30,151.20
  4. Step 4: Simplify right side
    52,708.89x = 2,380,034,301.40
  5. Step 5: Solve for x
    x = 2,380,034,301.40/52,708.89
  6. Step 6: Final answer
    x = 45,154.32

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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.