Home / 74,409.06-102,685.38-40,417.59

Finding the Fourth Proportional to 74,409.06, 102,685.38 and 40,417.59

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Solution

The fourth proportional to 74,409.06, 102,685.38 and 40,417.59 is: 55,776.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,409.06 : 102,685.38 = 40,417.59 : x
  2. Step 2: Convert to fraction form
    74,409.06/102,685.38 = 40,417.59/x
  3. Step 3: Cross multiply
    74,409.06x = 102,685.38 × 40,417.59
  4. Step 4: Simplify right side
    74,409.06x = 4,150,295,587.83
  5. Step 5: Solve for x
    x = 4,150,295,587.83/74,409.06
  6. Step 6: Final answer
    x = 55,776.75

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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.