Home / 84,461.20-126,618.90-42,908.20

Finding the Fourth Proportional to 84,461.20, 126,618.90 and 42,908.20

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Solution

The fourth proportional to 84,461.20, 126,618.90 and 42,908.20 is: 64,325.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,461.20 : 126,618.90 = 42,908.20 : x
  2. Step 2: Convert to fraction form
    84,461.20/126,618.90 = 42,908.20/x
  3. Step 3: Cross multiply
    84,461.20x = 126,618.90 × 42,908.20
  4. Step 4: Simplify right side
    84,461.20x = 5,432,989,084.98
  5. Step 5: Solve for x
    x = 5,432,989,084.98/84,461.20
  6. Step 6: Final answer
    x = 64,325.27

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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.