Home / 85,068.58-127,508.90-35,121.14

Finding the Fourth Proportional to 85,068.58, 127,508.90 and 35,121.14

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Solution

The fourth proportional to 85,068.58, 127,508.90 and 35,121.14 is: 52,642.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,068.58 : 127,508.90 = 35,121.14 : x
  2. Step 2: Convert to fraction form
    85,068.58/127,508.90 = 35,121.14/x
  3. Step 3: Cross multiply
    85,068.58x = 127,508.90 × 35,121.14
  4. Step 4: Simplify right side
    85,068.58x = 4,478,257,928.15
  5. Step 5: Solve for x
    x = 4,478,257,928.15/85,068.58
  6. Step 6: Final answer
    x = 52,642.91

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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.