Home / 74,364.89-102,623.67-40,373.42

Finding the Fourth Proportional to 74,364.89, 102,623.67 and 40,373.42

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Solution

The fourth proportional to 74,364.89, 102,623.67 and 40,373.42 is: 55,715.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,364.89 : 102,623.67 = 40,373.42 : x
  2. Step 2: Convert to fraction form
    74,364.89/102,623.67 = 40,373.42/x
  3. Step 3: Cross multiply
    74,364.89x = 102,623.67 × 40,373.42
  4. Step 4: Simplify right side
    74,364.89x = 4,143,268,017.73
  5. Step 5: Solve for x
    x = 4,143,268,017.73/74,364.89
  6. Step 6: Final answer
    x = 55,715.38

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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.