Home / 85,004.32-127,480.56-40,607.68

Finding the Fourth Proportional to 85,004.32, 127,480.56 and 40,607.68

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Solution

The fourth proportional to 85,004.32, 127,480.56 and 40,607.68 is: 60,899.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,004.32 : 127,480.56 = 40,607.68 : x
  2. Step 2: Convert to fraction form
    85,004.32/127,480.56 = 40,607.68/x
  3. Step 3: Cross multiply
    85,004.32x = 127,480.56 × 40,607.68
  4. Step 4: Simplify right side
    85,004.32x = 5,176,689,786.70
  5. Step 5: Solve for x
    x = 5,176,689,786.70/85,004.32
  6. Step 6: Final answer
    x = 60,899.14

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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.