Home / 84,416.54-126,631.46-28,256.84

Finding the Fourth Proportional to 84,416.54, 126,631.46 and 28,256.84

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Solution

The fourth proportional to 84,416.54, 126,631.46 and 28,256.84 is: 42,387.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,416.54 : 126,631.46 = 28,256.84 : x
  2. Step 2: Convert to fraction form
    84,416.54/126,631.46 = 28,256.84/x
  3. Step 3: Cross multiply
    84,416.54x = 126,631.46 × 28,256.84
  4. Step 4: Simplify right side
    84,416.54x = 3,578,205,369.90
  5. Step 5: Solve for x
    x = 3,578,205,369.90/84,416.54
  6. Step 6: Final answer
    x = 42,387.49

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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.