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Finding the Fourth Proportional to 40,300.80, 60,386.40 and 29,803.20

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Solution

The fourth proportional to 40,300.80, 60,386.40 and 29,803.20 is: 44,656.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,300.80 : 60,386.40 = 29,803.20 : x
  2. Step 2: Convert to fraction form
    40,300.80/60,386.40 = 29,803.20/x
  3. Step 3: Cross multiply
    40,300.80x = 60,386.40 × 29,803.20
  4. Step 4: Simplify right side
    40,300.80x = 1,799,707,956.48
  5. Step 5: Solve for x
    x = 1,799,707,956.48/40,300.80
  6. Step 6: Final answer
    x = 44,656.88

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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.