Home / 74,492.28-102,818.70-49,332.60

Finding the Fourth Proportional to 74,492.28, 102,818.70 and 49,332.60

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Solution

The fourth proportional to 74,492.28, 102,818.70 and 49,332.60 is: 68,091.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,492.28 : 102,818.70 = 49,332.60 : x
  2. Step 2: Convert to fraction form
    74,492.28/102,818.70 = 49,332.60/x
  3. Step 3: Cross multiply
    74,492.28x = 102,818.70 × 49,332.60
  4. Step 4: Simplify right side
    74,492.28x = 5,072,313,799.62
  5. Step 5: Solve for x
    x = 5,072,313,799.62/74,492.28
  6. Step 6: Final answer
    x = 68,091.80

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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.