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Finding the Fourth Proportional to 74,599.78, 102,949.01 and 40,609.24

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Solution

The fourth proportional to 74,599.78, 102,949.01 and 40,609.24 is: 56,041.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,599.78 : 102,949.01 = 40,609.24 : x
  2. Step 2: Convert to fraction form
    74,599.78/102,949.01 = 40,609.24/x
  3. Step 3: Cross multiply
    74,599.78x = 102,949.01 × 40,609.24
  4. Step 4: Simplify right side
    74,599.78x = 4,180,680,851.81
  5. Step 5: Solve for x
    x = 4,180,680,851.81/74,599.78
  6. Step 6: Final answer
    x = 56,041.47

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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.