Home / 52,126.40-78,189.60-49,851.20

Finding the Fourth Proportional to 52,126.40, 78,189.60 and 49,851.20

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Solution

The fourth proportional to 52,126.40, 78,189.60 and 49,851.20 is: 74,776.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,126.40 : 78,189.60 = 49,851.20 : x
  2. Step 2: Convert to fraction form
    52,126.40/78,189.60 = 49,851.20/x
  3. Step 3: Cross multiply
    52,126.40x = 78,189.60 × 49,851.20
  4. Step 4: Simplify right side
    52,126.40x = 3,897,845,387.52
  5. Step 5: Solve for x
    x = 3,897,845,387.52/52,126.40
  6. Step 6: Final answer
    x = 74,776.80

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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.