Home / 43,270.30-64,905.45-40,645.90

Finding the Fourth Proportional to 43,270.30, 64,905.45 and 40,645.90

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Solution

The fourth proportional to 43,270.30, 64,905.45 and 40,645.90 is: 60,968.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,270.30 : 64,905.45 = 40,645.90 : x
  2. Step 2: Convert to fraction form
    43,270.30/64,905.45 = 40,645.90/x
  3. Step 3: Cross multiply
    43,270.30x = 64,905.45 × 40,645.90
  4. Step 4: Simplify right side
    43,270.30x = 2,638,140,430.16
  5. Step 5: Solve for x
    x = 2,638,140,430.16/43,270.30
  6. Step 6: Final answer
    x = 60,968.85

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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.