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Finding the Fourth Proportional to 40,510.56, 60,697.80 and 28,765.56

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Solution

The fourth proportional to 40,510.56, 60,697.80 and 28,765.56 is: 43,100.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,510.56 : 60,697.80 = 28,765.56 : x
  2. Step 2: Convert to fraction form
    40,510.56/60,697.80 = 28,765.56/x
  3. Step 3: Cross multiply
    40,510.56x = 60,697.80 × 28,765.56
  4. Step 4: Simplify right side
    40,510.56x = 1,746,006,207.77
  5. Step 5: Solve for x
    x = 1,746,006,207.77/40,510.56
  6. Step 6: Final answer
    x = 43,100.03

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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.