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Finding the Fourth Proportional to 81,166.56, 112,009.58 and 45,356.56

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Solution

The fourth proportional to 81,166.56, 112,009.58 and 45,356.56 is: 62,591.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,166.56 : 112,009.58 = 45,356.56 : x
  2. Step 2: Convert to fraction form
    81,166.56/112,009.58 = 45,356.56/x
  3. Step 3: Cross multiply
    81,166.56x = 112,009.58 × 45,356.56
  4. Step 4: Simplify right side
    81,166.56x = 5,080,369,154.26
  5. Step 5: Solve for x
    x = 5,080,369,154.26/81,166.56
  6. Step 6: Final answer
    x = 62,591.90

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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.