Home / 61,679.20-85,117.60-34,822.80

Finding the Fourth Proportional to 61,679.20, 85,117.60 and 34,822.80

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Solution

The fourth proportional to 61,679.20, 85,117.60 and 34,822.80 is: 48,055.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,679.20 : 85,117.60 = 34,822.80 : x
  2. Step 2: Convert to fraction form
    61,679.20/85,117.60 = 34,822.80/x
  3. Step 3: Cross multiply
    61,679.20x = 85,117.60 × 34,822.80
  4. Step 4: Simplify right side
    61,679.20x = 2,964,033,161.28
  5. Step 5: Solve for x
    x = 2,964,033,161.28/61,679.20
  6. Step 6: Final answer
    x = 48,055.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.