Home / 71,203.15-98,260.98-39,374.20

Finding the Fourth Proportional to 71,203.15, 98,260.98 and 39,374.20

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Solution

The fourth proportional to 71,203.15, 98,260.98 and 39,374.20 is: 54,336.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,203.15 : 98,260.98 = 39,374.20 : x
  2. Step 2: Convert to fraction form
    71,203.15/98,260.98 = 39,374.20/x
  3. Step 3: Cross multiply
    71,203.15x = 98,260.98 × 39,374.20
  4. Step 4: Simplify right side
    71,203.15x = 3,868,946,987.41
  5. Step 5: Solve for x
    x = 3,868,946,987.41/71,203.15
  6. Step 6: Final answer
    x = 54,336.74

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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.