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Finding the Fourth Proportional to 81,030.84, 111,828.18 and 45,227.84

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Solution

The fourth proportional to 81,030.84, 111,828.18 and 45,227.84 is: 62,417.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,030.84 : 111,828.18 = 45,227.84 : x
  2. Step 2: Convert to fraction form
    81,030.84/111,828.18 = 45,227.84/x
  3. Step 3: Cross multiply
    81,030.84x = 111,828.18 × 45,227.84
  4. Step 4: Simplify right side
    81,030.84x = 5,057,746,473.39
  5. Step 5: Solve for x
    x = 5,057,746,473.39/81,030.84
  6. Step 6: Final answer
    x = 62,417.55

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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.