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Finding the Fourth Proportional to 40,300.20, 60,390.90 and 29,230.20

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Solution

The fourth proportional to 40,300.20, 60,390.90 and 29,230.20 is: 43,802.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,300.20 : 60,390.90 = 29,230.20 : x
  2. Step 2: Convert to fraction form
    40,300.20/60,390.90 = 29,230.20/x
  3. Step 3: Cross multiply
    40,300.20x = 60,390.90 × 29,230.20
  4. Step 4: Simplify right side
    40,300.20x = 1,765,238,085.18
  5. Step 5: Solve for x
    x = 1,765,238,085.18/40,300.20
  6. Step 6: Final answer
    x = 43,802.22

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1.5x scale

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.