Home / 74,074.55-102,223.17-68,423.72

Finding the Fourth Proportional to 74,074.55, 102,223.17 and 68,423.72

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Solution

The fourth proportional to 74,074.55, 102,223.17 and 68,423.72 is: 94,425.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,074.55 : 102,223.17 = 68,423.72 : x
  2. Step 2: Convert to fraction form
    74,074.55/102,223.17 = 68,423.72/x
  3. Step 3: Cross multiply
    74,074.55x = 102,223.17 × 68,423.72
  4. Step 4: Simplify right side
    74,074.55x = 6,994,489,050.48
  5. Step 5: Solve for x
    x = 6,994,489,050.48/74,074.55
  6. Step 6: Final answer
    x = 94,425.00

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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.