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Finding the Fourth Proportional to 40,035.66, 60,060.80 and 13,379.12

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Solution

The fourth proportional to 40,035.66, 60,060.80 and 13,379.12 is: 20,071.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,035.66 : 60,060.80 = 13,379.12 : x
  2. Step 2: Convert to fraction form
    40,035.66/60,060.80 = 13,379.12/x
  3. Step 3: Cross multiply
    40,035.66x = 60,060.80 × 13,379.12
  4. Step 4: Simplify right side
    40,035.66x = 803,560,650.50
  5. Step 5: Solve for x
    x = 803,560,650.50/40,035.66
  6. Step 6: Final answer
    x = 20,071.12

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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.