Home / 45,899.01-68,849.28-12,618.86

Finding the Fourth Proportional to 45,899.01, 68,849.28 and 12,618.86

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Solution

The fourth proportional to 45,899.01, 68,849.28 and 12,618.86 is: 18,928.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,899.01 : 68,849.28 = 12,618.86 : x
  2. Step 2: Convert to fraction form
    45,899.01/68,849.28 = 12,618.86/x
  3. Step 3: Cross multiply
    45,899.01x = 68,849.28 × 12,618.86
  4. Step 4: Simplify right side
    45,899.01x = 868,799,081.17
  5. Step 5: Solve for x
    x = 868,799,081.17/45,899.01
  6. Step 6: Final answer
    x = 18,928.49

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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.