Home / 75,002.76-112,374.54-39,835.80

Finding the Fourth Proportional to 75,002.76, 112,374.54 and 39,835.80

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Solution

The fourth proportional to 75,002.76, 112,374.54 and 39,835.80 is: 59,684.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,002.76 : 112,374.54 = 39,835.80 : x
  2. Step 2: Convert to fraction form
    75,002.76/112,374.54 = 39,835.80/x
  3. Step 3: Cross multiply
    75,002.76x = 112,374.54 × 39,835.80
  4. Step 4: Simplify right side
    75,002.76x = 4,476,529,700.53
  5. Step 5: Solve for x
    x = 4,476,529,700.53/75,002.76
  6. Step 6: Final answer
    x = 59,684.87

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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.