Home / 74,056.61-102,197.69-40,065

Finding the Fourth Proportional to 74,056.61, 102,197.69 and 40,065

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Solution

The fourth proportional to 74,056.61, 102,197.69 and 40,065 is: 55,289.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,056.61 : 102,197.69 = 40,065 : x
  2. Step 2: Convert to fraction form
    74,056.61/102,197.69 = 40,065/x
  3. Step 3: Cross multiply
    74,056.61x = 102,197.69 × 40,065
  4. Step 4: Simplify right side
    74,056.61x = 4,094,550,449.85
  5. Step 5: Solve for x
    x = 4,094,550,449.85/74,056.61
  6. Step 6: Final answer
    x = 55,289.47

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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.