Home / 74,431.95-102,716.22-40,440.57

Finding the Fourth Proportional to 74,431.95, 102,716.22 and 40,440.57

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Solution

The fourth proportional to 74,431.95, 102,716.22 and 40,440.57 is: 55,808.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,431.95 : 102,716.22 = 40,440.57 : x
  2. Step 2: Convert to fraction form
    74,431.95/102,716.22 = 40,440.57/x
  3. Step 3: Cross multiply
    74,431.95x = 102,716.22 × 40,440.57
  4. Step 4: Simplify right side
    74,431.95x = 4,153,902,282.84
  5. Step 5: Solve for x
    x = 4,153,902,282.84/74,431.95
  6. Step 6: Final answer
    x = 55,808.05

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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.