Home / 103,579.73-155,451.60-40,430.10

Finding the Fourth Proportional to 103,579.73, 155,451.60 and 40,430.10

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Solution

The fourth proportional to 103,579.73, 155,451.60 and 40,430.10 is: 60,677.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,579.73 : 155,451.60 = 40,430.10 : x
  2. Step 2: Convert to fraction form
    103,579.73/155,451.60 = 40,430.10/x
  3. Step 3: Cross multiply
    103,579.73x = 155,451.60 × 40,430.10
  4. Step 4: Simplify right side
    103,579.73x = 6,284,923,733.16
  5. Step 5: Solve for x
    x = 6,284,923,733.16/103,579.73
  6. Step 6: Final answer
    x = 60,677.16

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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.