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Finding the Fourth Proportional to 43,342.08, 64,985.08 and 28,506.08

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Solution

The fourth proportional to 43,342.08, 64,985.08 and 28,506.08 is: 42,740.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,342.08 : 64,985.08 = 28,506.08 : x
  2. Step 2: Convert to fraction form
    43,342.08/64,985.08 = 28,506.08/x
  3. Step 3: Cross multiply
    43,342.08x = 64,985.08 × 28,506.08
  4. Step 4: Simplify right side
    43,342.08x = 1,852,469,889.29
  5. Step 5: Solve for x
    x = 1,852,469,889.29/43,342.08
  6. Step 6: Final answer
    x = 42,740.68

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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.