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Finding the Fourth Proportional to 80,773.32, 111,232 and 62,838.12

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Solution

The fourth proportional to 80,773.32, 111,232 and 62,838.12 is: 86,533.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,773.32 : 111,232 = 62,838.12 : x
  2. Step 2: Convert to fraction form
    80,773.32/111,232 = 62,838.12/x
  3. Step 3: Cross multiply
    80,773.32x = 111,232 × 62,838.12
  4. Step 4: Simplify right side
    80,773.32x = 6,989,609,763.84
  5. Step 5: Solve for x
    x = 6,989,609,763.84/80,773.32
  6. Step 6: Final answer
    x = 86,533.64

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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.