Home / 74,364.55-102,622.75-40,372.76

Finding the Fourth Proportional to 74,364.55, 102,622.75 and 40,372.76

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Solution

The fourth proportional to 74,364.55, 102,622.75 and 40,372.76 is: 55,714.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,364.55 : 102,622.75 = 40,372.76 : x
  2. Step 2: Convert to fraction form
    74,364.55/102,622.75 = 40,372.76/x
  3. Step 3: Cross multiply
    74,364.55x = 102,622.75 × 40,372.76
  4. Step 4: Simplify right side
    74,364.55x = 4,143,163,850.93
  5. Step 5: Solve for x
    x = 4,143,163,850.93/74,364.55
  6. Step 6: Final answer
    x = 55,714.23

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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.