Home / 86,215.24-118,977.08-48,489.52

Finding the Fourth Proportional to 86,215.24, 118,977.08 and 48,489.52

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Solution

The fourth proportional to 86,215.24, 118,977.08 and 48,489.52 is: 66,915.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,215.24 : 118,977.08 = 48,489.52 : x
  2. Step 2: Convert to fraction form
    86,215.24/118,977.08 = 48,489.52/x
  3. Step 3: Cross multiply
    86,215.24x = 118,977.08 × 48,489.52
  4. Step 4: Simplify right side
    86,215.24x = 5,769,141,500.20
  5. Step 5: Solve for x
    x = 5,769,141,500.20/86,215.24
  6. Step 6: Final answer
    x = 66,915.57

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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.