Home / 84,550.28-126,715.20-47,108.84

Finding the Fourth Proportional to 84,550.28, 126,715.20 and 47,108.84

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Solution

The fourth proportional to 84,550.28, 126,715.20 and 47,108.84 is: 70,601.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,550.28 : 126,715.20 = 47,108.84 : x
  2. Step 2: Convert to fraction form
    84,550.28/126,715.20 = 47,108.84/x
  3. Step 3: Cross multiply
    84,550.28x = 126,715.20 × 47,108.84
  4. Step 4: Simplify right side
    84,550.28x = 5,969,406,082.37
  5. Step 5: Solve for x
    x = 5,969,406,082.37/84,550.28
  6. Step 6: Final answer
    x = 70,601.85

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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.