Home / 68,245.10-102,432.45-42,001.10

Finding the Fourth Proportional to 68,245.10, 102,432.45 and 42,001.10

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Solution

The fourth proportional to 68,245.10, 102,432.45 and 42,001.10 is: 63,041.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,245.10 : 102,432.45 = 42,001.10 : x
  2. Step 2: Convert to fraction form
    68,245.10/102,432.45 = 42,001.10/x
  3. Step 3: Cross multiply
    68,245.10x = 102,432.45 × 42,001.10
  4. Step 4: Simplify right side
    68,245.10x = 4,302,275,575.70
  5. Step 5: Solve for x
    x = 4,302,275,575.70/68,245.10
  6. Step 6: Final answer
    x = 63,041.53

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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.