Home / 65,900.83-90,965.33-40,059.29

Finding the Fourth Proportional to 65,900.83, 90,965.33 and 40,059.29

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Solution

The fourth proportional to 65,900.83, 90,965.33 and 40,059.29 is: 55,295.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,900.83 : 90,965.33 = 40,059.29 : x
  2. Step 2: Convert to fraction form
    65,900.83/90,965.33 = 40,059.29/x
  3. Step 3: Cross multiply
    65,900.83x = 90,965.33 × 40,059.29
  4. Step 4: Simplify right side
    65,900.83x = 3,644,006,534.42
  5. Step 5: Solve for x
    x = 3,644,006,534.42/65,900.83
  6. Step 6: Final answer
    x = 55,295.31

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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.