Home / 84,423.32-126,572.06-28,230.20

Finding the Fourth Proportional to 84,423.32, 126,572.06 and 28,230.20

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Solution

The fourth proportional to 84,423.32, 126,572.06 and 28,230.20 is: 42,324.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,423.32 : 126,572.06 = 28,230.20 : x
  2. Step 2: Convert to fraction form
    84,423.32/126,572.06 = 28,230.20/x
  3. Step 3: Cross multiply
    84,423.32x = 126,572.06 × 28,230.20
  4. Step 4: Simplify right side
    84,423.32x = 3,573,154,568.21
  5. Step 5: Solve for x
    x = 3,573,154,568.21/84,423.32
  6. Step 6: Final answer
    x = 42,324.26

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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.