Home / 53,903.84-74,387.36-31,247.20

Finding the Fourth Proportional to 53,903.84, 74,387.36 and 31,247.20

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Solution

The fourth proportional to 53,903.84, 74,387.36 and 31,247.20 is: 43,121.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,903.84 : 74,387.36 = 31,247.20 : x
  2. Step 2: Convert to fraction form
    53,903.84/74,387.36 = 31,247.20/x
  3. Step 3: Cross multiply
    53,903.84x = 74,387.36 × 31,247.20
  4. Step 4: Simplify right side
    53,903.84x = 2,324,396,715.39
  5. Step 5: Solve for x
    x = 2,324,396,715.39/53,903.84
  6. Step 6: Final answer
    x = 43,121.17

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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.