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Finding the Fourth Proportional to 40,536, 60,835.32 and 28,143

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Solution

The fourth proportional to 40,536, 60,835.32 and 28,143 is: 42,236.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,536 : 60,835.32 = 28,143 : x
  2. Step 2: Convert to fraction form
    40,536/60,835.32 = 28,143/x
  3. Step 3: Cross multiply
    40,536x = 60,835.32 × 28,143
  4. Step 4: Simplify right side
    40,536x = 1,712,088,410.76
  5. Step 5: Solve for x
    x = 1,712,088,410.76/40,536
  6. Step 6: Final answer
    x = 42,236.24

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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.