Home / 51,386.14-70,924.31-31,238.75

Finding the Fourth Proportional to 51,386.14, 70,924.31 and 31,238.75

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Solution

The fourth proportional to 51,386.14, 70,924.31 and 31,238.75 is: 43,116.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,386.14 : 70,924.31 = 31,238.75 : x
  2. Step 2: Convert to fraction form
    51,386.14/70,924.31 = 31,238.75/x
  3. Step 3: Cross multiply
    51,386.14x = 70,924.31 × 31,238.75
  4. Step 4: Simplify right side
    51,386.14x = 2,215,586,632.82
  5. Step 5: Solve for x
    x = 2,215,586,632.82/51,386.14
  6. Step 6: Final answer
    x = 43,116.43

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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.