Home / 81,908.07-113,068.00-55,066.14

Finding the Fourth Proportional to 81,908.07, 113,068.00 and 55,066.14

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Solution

The fourth proportional to 81,908.07, 113,068.00 and 55,066.14 is: 76,014.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,908.07 : 113,068.00 = 55,066.14 : x
  2. Step 2: Convert to fraction form
    81,908.07/113,068.00 = 55,066.14/x
  3. Step 3: Cross multiply
    81,908.07x = 113,068.00 × 55,066.14
  4. Step 4: Simplify right side
    81,908.07x = 6,226,218,386.35
  5. Step 5: Solve for x
    x = 6,226,218,386.35/81,908.07
  6. Step 6: Final answer
    x = 76,014.72

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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.