Home / 74,211.57-102,410.82-40,219.11

Finding the Fourth Proportional to 74,211.57, 102,410.82 and 40,219.11

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Solution

The fourth proportional to 74,211.57, 102,410.82 and 40,219.11 is: 55,501.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,211.57 : 102,410.82 = 40,219.11 : x
  2. Step 2: Convert to fraction form
    74,211.57/102,410.82 = 40,219.11/x
  3. Step 3: Cross multiply
    74,211.57x = 102,410.82 × 40,219.11
  4. Step 4: Simplify right side
    74,211.57x = 4,118,872,034.77
  5. Step 5: Solve for x
    x = 4,118,872,034.77/74,211.57
  6. Step 6: Final answer
    x = 55,501.75

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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.