Home / 85,890.60-128,874.18-33,304.14

Finding the Fourth Proportional to 85,890.60, 128,874.18 and 33,304.14

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Solution

The fourth proportional to 85,890.60, 128,874.18 and 33,304.14 is: 49,971.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,890.60 : 128,874.18 = 33,304.14 : x
  2. Step 2: Convert to fraction form
    85,890.60/128,874.18 = 33,304.14/x
  3. Step 3: Cross multiply
    85,890.60x = 128,874.18 × 33,304.14
  4. Step 4: Simplify right side
    85,890.60x = 4,292,043,733.11
  5. Step 5: Solve for x
    x = 4,292,043,733.11/85,890.60
  6. Step 6: Final answer
    x = 49,971.05

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1.5x scale

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.