Home / 74,891.12-103,349.93-40,899.87

Finding the Fourth Proportional to 74,891.12, 103,349.93 and 40,899.87

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Solution

The fourth proportional to 74,891.12, 103,349.93 and 40,899.87 is: 56,441.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,891.12 : 103,349.93 = 40,899.87 : x
  2. Step 2: Convert to fraction form
    74,891.12/103,349.93 = 40,899.87/x
  3. Step 3: Cross multiply
    74,891.12x = 103,349.93 × 40,899.87
  4. Step 4: Simplify right side
    74,891.12x = 4,226,998,497.01
  5. Step 5: Solve for x
    x = 4,226,998,497.01/74,891.12
  6. Step 6: Final answer
    x = 56,441.92

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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.