Home / 68,345.18-94,314.21-40,069.70

Finding the Fourth Proportional to 68,345.18, 94,314.21 and 40,069.70

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Solution

The fourth proportional to 68,345.18, 94,314.21 and 40,069.70 is: 55,294.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,345.18 : 94,314.21 = 40,069.70 : x
  2. Step 2: Convert to fraction form
    68,345.18/94,314.21 = 40,069.70/x
  3. Step 3: Cross multiply
    68,345.18x = 94,314.21 × 40,069.70
  4. Step 4: Simplify right side
    68,345.18x = 3,779,142,100.44
  5. Step 5: Solve for x
    x = 3,779,142,100.44/68,345.18
  6. Step 6: Final answer
    x = 55,294.93

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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.