Home / 85,004.40-127,360.80-40,535.40

Finding the Fourth Proportional to 85,004.40, 127,360.80 and 40,535.40

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Solution

The fourth proportional to 85,004.40, 127,360.80 and 40,535.40 is: 60,733.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,004.40 : 127,360.80 = 40,535.40 : x
  2. Step 2: Convert to fraction form
    85,004.40/127,360.80 = 40,535.40/x
  3. Step 3: Cross multiply
    85,004.40x = 127,360.80 × 40,535.40
  4. Step 4: Simplify right side
    85,004.40x = 5,162,620,972.32
  5. Step 5: Solve for x
    x = 5,162,620,972.32/85,004.40
  6. Step 6: Final answer
    x = 60,733.57

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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.