Home / 74,081.98-102,232.34-40,089.72

Finding the Fourth Proportional to 74,081.98, 102,232.34 and 40,089.72

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Solution

The fourth proportional to 74,081.98, 102,232.34 and 40,089.72 is: 55,323.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,081.98 : 102,232.34 = 40,089.72 : x
  2. Step 2: Convert to fraction form
    74,081.98/102,232.34 = 40,089.72/x
  3. Step 3: Cross multiply
    74,081.98x = 102,232.34 × 40,089.72
  4. Step 4: Simplify right side
    74,081.98x = 4,098,465,885.54
  5. Step 5: Solve for x
    x = 4,098,465,885.54/74,081.98
  6. Step 6: Final answer
    x = 55,323.38

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1.5x scale

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.