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Finding the Fourth Proportional to 81,770.56, 112,838.20 and 45,960.08

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Solution

The fourth proportional to 81,770.56, 112,838.20 and 45,960.08 is: 63,422.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,770.56 : 112,838.20 = 45,960.08 : x
  2. Step 2: Convert to fraction form
    81,770.56/112,838.20 = 45,960.08/x
  3. Step 3: Cross multiply
    81,770.56x = 112,838.20 × 45,960.08
  4. Step 4: Simplify right side
    81,770.56x = 5,186,052,699.06
  5. Step 5: Solve for x
    x = 5,186,052,699.06/81,770.56
  6. Step 6: Final answer
    x = 63,422.00

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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.