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Finding the Fourth Proportional to 97,010.40, 145,400.40 and 40,850.40

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Solution

The fourth proportional to 97,010.40, 145,400.40 and 40,850.40 is: 61,227.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,010.40 : 145,400.40 = 40,850.40 : x
  2. Step 2: Convert to fraction form
    97,010.40/145,400.40 = 40,850.40/x
  3. Step 3: Cross multiply
    97,010.40x = 145,400.40 × 40,850.40
  4. Step 4: Simplify right side
    97,010.40x = 5,939,664,500.16
  5. Step 5: Solve for x
    x = 5,939,664,500.16/97,010.40
  6. Step 6: Final answer
    x = 61,227.09

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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.