Home / 75,102.78-112,666.59-35,638.35

Finding the Fourth Proportional to 75,102.78, 112,666.59 and 35,638.35

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Solution

The fourth proportional to 75,102.78, 112,666.59 and 35,638.35 is: 53,463.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,102.78 : 112,666.59 = 35,638.35 : x
  2. Step 2: Convert to fraction form
    75,102.78/112,666.59 = 35,638.35/x
  3. Step 3: Cross multiply
    75,102.78x = 112,666.59 × 35,638.35
  4. Step 4: Simplify right side
    75,102.78x = 4,015,251,367.73
  5. Step 5: Solve for x
    x = 4,015,251,367.73/75,102.78
  6. Step 6: Final answer
    x = 53,463.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.