Home / 79,638.84-119,532.20-40,223.66

Finding the Fourth Proportional to 79,638.84, 119,532.20 and 40,223.66

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Solution

The fourth proportional to 79,638.84, 119,532.20 and 40,223.66 is: 60,372.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,638.84 : 119,532.20 = 40,223.66 : x
  2. Step 2: Convert to fraction form
    79,638.84/119,532.20 = 40,223.66/x
  3. Step 3: Cross multiply
    79,638.84x = 119,532.20 × 40,223.66
  4. Step 4: Simplify right side
    79,638.84x = 4,808,021,773.07
  5. Step 5: Solve for x
    x = 4,808,021,773.07/79,638.84
  6. Step 6: Final answer
    x = 60,372.83

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1.5x scale

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.