Home / 79,479.23-109,778.29-59,424.89

Finding the Fourth Proportional to 79,479.23, 109,778.29 and 59,424.89

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Solution

The fourth proportional to 79,479.23, 109,778.29 and 59,424.89 is: 82,078.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,479.23 : 109,778.29 = 59,424.89 : x
  2. Step 2: Convert to fraction form
    79,479.23/109,778.29 = 59,424.89/x
  3. Step 3: Cross multiply
    79,479.23x = 109,778.29 × 59,424.89
  4. Step 4: Simplify right side
    79,479.23x = 6,523,562,727.69
  5. Step 5: Solve for x
    x = 6,523,562,727.69/79,479.23
  6. Step 6: Final answer
    x = 82,078.84

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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.