Home / 74,581.06-102,920.52-40,588.36

Finding the Fourth Proportional to 74,581.06, 102,920.52 and 40,588.36

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Solution

The fourth proportional to 74,581.06, 102,920.52 and 40,588.36 is: 56,011.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,581.06 : 102,920.52 = 40,588.36 : x
  2. Step 2: Convert to fraction form
    74,581.06/102,920.52 = 40,588.36/x
  3. Step 3: Cross multiply
    74,581.06x = 102,920.52 × 40,588.36
  4. Step 4: Simplify right side
    74,581.06x = 4,177,375,117.15
  5. Step 5: Solve for x
    x = 4,177,375,117.15/74,581.06
  6. Step 6: Final answer
    x = 56,011.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.