Home / 50,918.57-70,218.81-30,497.36

Finding the Fourth Proportional to 50,918.57, 70,218.81 and 30,497.36

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Solution

The fourth proportional to 50,918.57, 70,218.81 and 30,497.36 is: 42,057.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,918.57 : 70,218.81 = 30,497.36 : x
  2. Step 2: Convert to fraction form
    50,918.57/70,218.81 = 30,497.36/x
  3. Step 3: Cross multiply
    50,918.57x = 70,218.81 × 30,497.36
  4. Step 4: Simplify right side
    50,918.57x = 2,141,488,502.89
  5. Step 5: Solve for x
    x = 2,141,488,502.89/50,918.57
  6. Step 6: Final answer
    x = 42,057.12

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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.