Home / 68,690.08-94,779.48-40,385.44

Finding the Fourth Proportional to 68,690.08, 94,779.48 and 40,385.44

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Solution

The fourth proportional to 68,690.08, 94,779.48 and 40,385.44 is: 55,724.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,690.08 : 94,779.48 = 40,385.44 : x
  2. Step 2: Convert to fraction form
    68,690.08/94,779.48 = 40,385.44/x
  3. Step 3: Cross multiply
    68,690.08x = 94,779.48 × 40,385.44
  4. Step 4: Simplify right side
    68,690.08x = 3,827,711,002.77
  5. Step 5: Solve for x
    x = 3,827,711,002.77/68,690.08
  6. Step 6: Final answer
    x = 55,724.36

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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.