Home / 68,310.40-94,275.60-40,039.84

Finding the Fourth Proportional to 68,310.40, 94,275.60 and 40,039.84

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Solution

The fourth proportional to 68,310.40, 94,275.60 and 40,039.84 is: 55,259.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,310.40 : 94,275.60 = 40,039.84 : x
  2. Step 2: Convert to fraction form
    68,310.40/94,275.60 = 40,039.84/x
  3. Step 3: Cross multiply
    68,310.40x = 94,275.60 × 40,039.84
  4. Step 4: Simplify right side
    68,310.40x = 3,774,779,939.90
  5. Step 5: Solve for x
    x = 3,774,779,939.90/68,310.40
  6. Step 6: Final answer
    x = 55,259.23

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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.