Home / 74,821.60-112,176.60-45,233.20

Finding the Fourth Proportional to 74,821.60, 112,176.60 and 45,233.20

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Solution

The fourth proportional to 74,821.60, 112,176.60 and 45,233.20 is: 67,816.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,821.60 : 112,176.60 = 45,233.20 : x
  2. Step 2: Convert to fraction form
    74,821.60/112,176.60 = 45,233.20/x
  3. Step 3: Cross multiply
    74,821.60x = 112,176.60 × 45,233.20
  4. Step 4: Simplify right side
    74,821.60x = 5,074,106,583.12
  5. Step 5: Solve for x
    x = 5,074,106,583.12/74,821.60
  6. Step 6: Final answer
    x = 67,816.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.