Home / 65,740.13-98,560.98-21,340.38

Finding the Fourth Proportional to 65,740.13, 98,560.98 and 21,340.38

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Solution

The fourth proportional to 65,740.13, 98,560.98 and 21,340.38 is: 31,994.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,740.13 : 98,560.98 = 21,340.38 : x
  2. Step 2: Convert to fraction form
    65,740.13/98,560.98 = 21,340.38/x
  3. Step 3: Cross multiply
    65,740.13x = 98,560.98 × 21,340.38
  4. Step 4: Simplify right side
    65,740.13x = 2,103,328,766.37
  5. Step 5: Solve for x
    x = 2,103,328,766.37/65,740.13
  6. Step 6: Final answer
    x = 31,994.60

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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.