Home / 53,768.75-74,206.64-31,107.31

Finding the Fourth Proportional to 53,768.75, 74,206.64 and 31,107.31

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Solution

The fourth proportional to 53,768.75, 74,206.64 and 31,107.31 is: 42,931.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,768.75 : 74,206.64 = 31,107.31 : x
  2. Step 2: Convert to fraction form
    53,768.75/74,206.64 = 31,107.31/x
  3. Step 3: Cross multiply
    53,768.75x = 74,206.64 × 31,107.31
  4. Step 4: Simplify right side
    53,768.75x = 2,308,368,846.79
  5. Step 5: Solve for x
    x = 2,308,368,846.79/53,768.75
  6. Step 6: Final answer
    x = 42,931.43

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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.