Home / 51,639.32-71,257.02-31,486.52

Finding the Fourth Proportional to 51,639.32, 71,257.02 and 31,486.52

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Solution

The fourth proportional to 51,639.32, 71,257.02 and 31,486.52 is: 43,448.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,639.32 : 71,257.02 = 31,486.52 : x
  2. Step 2: Convert to fraction form
    51,639.32/71,257.02 = 31,486.52/x
  3. Step 3: Cross multiply
    51,639.32x = 71,257.02 × 31,486.52
  4. Step 4: Simplify right side
    51,639.32x = 2,243,635,585.37
  5. Step 5: Solve for x
    x = 2,243,635,585.37/51,639.32
  6. Step 6: Final answer
    x = 43,448.20

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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.