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Finding the Fourth Proportional to 86,963.31, 120,008.04 and 48,724.23

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Solution

The fourth proportional to 86,963.31, 120,008.04 and 48,724.23 is: 67,238.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,963.31 : 120,008.04 = 48,724.23 : x
  2. Step 2: Convert to fraction form
    86,963.31/120,008.04 = 48,724.23/x
  3. Step 3: Cross multiply
    86,963.31x = 120,008.04 × 48,724.23
  4. Step 4: Simplify right side
    86,963.31x = 5,847,299,342.81
  5. Step 5: Solve for x
    x = 5,847,299,342.81/86,963.31
  6. Step 6: Final answer
    x = 67,238.69

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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.