Home / 326,066.10-489,099.15-89,432.70

Finding the Fourth Proportional to 326,066.10, 489,099.15 and 89,432.70

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Solution

The fourth proportional to 326,066.10, 489,099.15 and 89,432.70 is: 134,149.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,066.10 : 489,099.15 = 89,432.70 : x
  2. Step 2: Convert to fraction form
    326,066.10/489,099.15 = 89,432.70/x
  3. Step 3: Cross multiply
    326,066.10x = 489,099.15 × 89,432.70
  4. Step 4: Simplify right side
    326,066.10x = 43,741,457,552.21
  5. Step 5: Solve for x
    x = 43,741,457,552.21/326,066.10
  6. Step 6: Final answer
    x = 134,149.05

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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.