Home / 75,137.30-103,689.69-41,146.10

Finding the Fourth Proportional to 75,137.30, 103,689.69 and 41,146.10

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Solution

The fourth proportional to 75,137.30, 103,689.69 and 41,146.10 is: 56,781.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,137.30 : 103,689.69 = 41,146.10 : x
  2. Step 2: Convert to fraction form
    75,137.30/103,689.69 = 41,146.10/x
  3. Step 3: Cross multiply
    75,137.30x = 103,689.69 × 41,146.10
  4. Step 4: Simplify right side
    75,137.30x = 4,266,426,353.71
  5. Step 5: Solve for x
    x = 4,266,426,353.71/75,137.30
  6. Step 6: Final answer
    x = 56,781.74

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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.