Home / 79,653.47-119,381.51-40,221.86

Finding the Fourth Proportional to 79,653.47, 119,381.51 and 40,221.86

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Solution

The fourth proportional to 79,653.47, 119,381.51 and 40,221.86 is: 60,282.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,653.47 : 119,381.51 = 40,221.86 : x
  2. Step 2: Convert to fraction form
    79,653.47/119,381.51 = 40,221.86/x
  3. Step 3: Cross multiply
    79,653.47x = 119,381.51 × 40,221.86
  4. Step 4: Simplify right side
    79,653.47x = 4,801,745,885.46
  5. Step 5: Solve for x
    x = 4,801,745,885.46/79,653.47
  6. Step 6: Final answer
    x = 60,282.95

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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.