Home / 75,146.90-103,699.52-41,154.78

Finding the Fourth Proportional to 75,146.90, 103,699.52 and 41,154.78

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Solution

The fourth proportional to 75,146.90, 103,699.52 and 41,154.78 is: 56,791.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,146.90 : 103,699.52 = 41,154.78 : x
  2. Step 2: Convert to fraction form
    75,146.90/103,699.52 = 41,154.78/x
  3. Step 3: Cross multiply
    75,146.90x = 103,699.52 × 41,154.78
  4. Step 4: Simplify right side
    75,146.90x = 4,267,730,931.71
  5. Step 5: Solve for x
    x = 4,267,730,931.71/75,146.90
  6. Step 6: Final answer
    x = 56,791.84

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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.