Home / 68,678.10-94,761.77-38,458.62

Finding the Fourth Proportional to 68,678.10, 94,761.77 and 38,458.62

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Solution

The fourth proportional to 68,678.10, 94,761.77 and 38,458.62 is: 53,065.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,678.10 : 94,761.77 = 38,458.62 : x
  2. Step 2: Convert to fraction form
    68,678.10/94,761.77 = 38,458.62/x
  3. Step 3: Cross multiply
    68,678.10x = 94,761.77 × 38,458.62
  4. Step 4: Simplify right side
    68,678.10x = 3,644,406,710.66
  5. Step 5: Solve for x
    x = 3,644,406,710.66/68,678.10
  6. Step 6: Final answer
    x = 53,065.05

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1.5x scale

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.