Home / 67,958.16-93,776.77-39,279.68

Finding the Fourth Proportional to 67,958.16, 93,776.77 and 39,279.68

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Solution

The fourth proportional to 67,958.16, 93,776.77 and 39,279.68 is: 54,202.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,958.16 : 93,776.77 = 39,279.68 : x
  2. Step 2: Convert to fraction form
    67,958.16/93,776.77 = 39,279.68/x
  3. Step 3: Cross multiply
    67,958.16x = 93,776.77 × 39,279.68
  4. Step 4: Simplify right side
    67,958.16x = 3,683,520,851.75
  5. Step 5: Solve for x
    x = 3,683,520,851.75/67,958.16
  6. Step 6: Final answer
    x = 54,202.77

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1.5x scale

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.