Home / 306,025.62-459,001.90-81,402.49

Finding the Fourth Proportional to 306,025.62, 459,001.90 and 81,402.49

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Solution

The fourth proportional to 306,025.62, 459,001.90 and 81,402.49 is: 122,094.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,025.62 : 459,001.90 = 81,402.49 : x
  2. Step 2: Convert to fraction form
    306,025.62/459,001.90 = 81,402.49/x
  3. Step 3: Cross multiply
    306,025.62x = 459,001.90 × 81,402.49
  4. Step 4: Simplify right side
    306,025.62x = 37,363,897,574.73
  5. Step 5: Solve for x
    x = 37,363,897,574.73/306,025.62
  6. Step 6: Final answer
    x = 122,094.02

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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.