Home / 85,835.70-128,753.55-26,677.35

Finding the Fourth Proportional to 85,835.70, 128,753.55 and 26,677.35

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Solution

The fourth proportional to 85,835.70, 128,753.55 and 26,677.35 is: 40,016.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,835.70 : 128,753.55 = 26,677.35 : x
  2. Step 2: Convert to fraction form
    85,835.70/128,753.55 = 26,677.35/x
  3. Step 3: Cross multiply
    85,835.70x = 128,753.55 × 26,677.35
  4. Step 4: Simplify right side
    85,835.70x = 3,434,803,517.09
  5. Step 5: Solve for x
    x = 3,434,803,517.09/85,835.70
  6. Step 6: Final answer
    x = 40,016.03

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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.