Home / 86,215.28-118,977.06-48,489.50

Finding the Fourth Proportional to 86,215.28, 118,977.06 and 48,489.50

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Solution

The fourth proportional to 86,215.28, 118,977.06 and 48,489.50 is: 66,915.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,215.28 : 118,977.06 = 48,489.50 : x
  2. Step 2: Convert to fraction form
    86,215.28/118,977.06 = 48,489.50/x
  3. Step 3: Cross multiply
    86,215.28x = 118,977.06 × 48,489.50
  4. Step 4: Simplify right side
    86,215.28x = 5,769,138,150.87
  5. Step 5: Solve for x
    x = 5,769,138,150.87/86,215.28
  6. Step 6: Final answer
    x = 66,915.50

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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.