Home / 75,134.78-103,697.38-42,869.24

Finding the Fourth Proportional to 75,134.78, 103,697.38 and 42,869.24

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Solution

The fourth proportional to 75,134.78, 103,697.38 and 42,869.24 is: 59,166.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,134.78 : 103,697.38 = 42,869.24 : x
  2. Step 2: Convert to fraction form
    75,134.78/103,697.38 = 42,869.24/x
  3. Step 3: Cross multiply
    75,134.78x = 103,697.38 × 42,869.24
  4. Step 4: Simplify right side
    75,134.78x = 4,445,427,870.59
  5. Step 5: Solve for x
    x = 4,445,427,870.59/75,134.78
  6. Step 6: Final answer
    x = 59,166.05

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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.