Home / 48,938.16-73,416.66-20,857.69

Finding the Fourth Proportional to 48,938.16, 73,416.66 and 20,857.69

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Solution

The fourth proportional to 48,938.16, 73,416.66 and 20,857.69 is: 31,290.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,938.16 : 73,416.66 = 20,857.69 : x
  2. Step 2: Convert to fraction form
    48,938.16/73,416.66 = 20,857.69/x
  3. Step 3: Cross multiply
    48,938.16x = 73,416.66 × 20,857.69
  4. Step 4: Simplify right side
    48,938.16x = 1,531,301,935.12
  5. Step 5: Solve for x
    x = 1,531,301,935.12/48,938.16
  6. Step 6: Final answer
    x = 31,290.55

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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.