Home / 75,053.12-103,575.71-42,787.14

Finding the Fourth Proportional to 75,053.12, 103,575.71 and 42,787.14

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Solution

The fourth proportional to 75,053.12, 103,575.71 and 42,787.14 is: 59,047.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,053.12 : 103,575.71 = 42,787.14 : x
  2. Step 2: Convert to fraction form
    75,053.12/103,575.71 = 42,787.14/x
  3. Step 3: Cross multiply
    75,053.12x = 103,575.71 × 42,787.14
  4. Step 4: Simplify right side
    75,053.12x = 4,431,708,122.93
  5. Step 5: Solve for x
    x = 4,431,708,122.93/75,053.12
  6. Step 6: Final answer
    x = 59,047.62

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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.