Home / 79,187.07-109,278.19-43,377.67

Finding the Fourth Proportional to 79,187.07, 109,278.19 and 43,377.67

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Solution

The fourth proportional to 79,187.07, 109,278.19 and 43,377.67 is: 59,861.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,187.07 : 109,278.19 = 43,377.67 : x
  2. Step 2: Convert to fraction form
    79,187.07/109,278.19 = 43,377.67/x
  3. Step 3: Cross multiply
    79,187.07x = 109,278.19 × 43,377.67
  4. Step 4: Simplify right side
    79,187.07x = 4,740,233,264.02
  5. Step 5: Solve for x
    x = 4,740,233,264.02/79,187.07
  6. Step 6: Final answer
    x = 59,861.20

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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.