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Finding the Fourth Proportional to 81,482.59, 112,446.23 and 45,186.59

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Solution

The fourth proportional to 81,482.59, 112,446.23 and 45,186.59 is: 62,357.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,482.59 : 112,446.23 = 45,186.59 : x
  2. Step 2: Convert to fraction form
    81,482.59/112,446.23 = 45,186.59/x
  3. Step 3: Cross multiply
    81,482.59x = 112,446.23 × 45,186.59
  4. Step 4: Simplify right side
    81,482.59x = 5,081,061,958.07
  5. Step 5: Solve for x
    x = 5,081,061,958.07/81,482.59
  6. Step 6: Final answer
    x = 62,357.64

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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.