Home / 49,719.60-68,609.16-30,853.08

Finding the Fourth Proportional to 49,719.60, 68,609.16 and 30,853.08

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Solution

The fourth proportional to 49,719.60, 68,609.16 and 30,853.08 is: 42,574.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,719.60 : 68,609.16 = 30,853.08 : x
  2. Step 2: Convert to fraction form
    49,719.60/68,609.16 = 30,853.08/x
  3. Step 3: Cross multiply
    49,719.60x = 68,609.16 × 30,853.08
  4. Step 4: Simplify right side
    49,719.60x = 2,116,803,902.21
  5. Step 5: Solve for x
    x = 2,116,803,902.21/49,719.60
  6. Step 6: Final answer
    x = 42,574.84

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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.