Home / 39,935.01-54,980.73-31,422.12

Finding the Fourth Proportional to 39,935.01, 54,980.73 and 31,422.12

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Solution

The fourth proportional to 39,935.01, 54,980.73 and 31,422.12 is: 43,260.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,935.01 : 54,980.73 = 31,422.12 : x
  2. Step 2: Convert to fraction form
    39,935.01/54,980.73 = 31,422.12/x
  3. Step 3: Cross multiply
    39,935.01x = 54,980.73 × 31,422.12
  4. Step 4: Simplify right side
    39,935.01x = 1,727,611,095.75
  5. Step 5: Solve for x
    x = 1,727,611,095.75/39,935.01
  6. Step 6: Final answer
    x = 43,260.56

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1.5x scale

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.