Home / 43,456.83-59,971.28-28,359.15

Finding the Fourth Proportional to 43,456.83, 59,971.28 and 28,359.15

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Solution

The fourth proportional to 43,456.83, 59,971.28 and 28,359.15 is: 39,136.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,456.83 : 59,971.28 = 28,359.15 : x
  2. Step 2: Convert to fraction form
    43,456.83/59,971.28 = 28,359.15/x
  3. Step 3: Cross multiply
    43,456.83x = 59,971.28 × 28,359.15
  4. Step 4: Simplify right side
    43,456.83x = 1,700,734,383.42
  5. Step 5: Solve for x
    x = 1,700,734,383.42/43,456.83
  6. Step 6: Final answer
    x = 39,136.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.