Home / 81,776.17-112,812.99-53,093.66

Finding the Fourth Proportional to 81,776.17, 112,812.99 and 53,093.66

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Solution

The fourth proportional to 81,776.17, 112,812.99 and 53,093.66 is: 73,244.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,776.17 : 112,812.99 = 53,093.66 : x
  2. Step 2: Convert to fraction form
    81,776.17/112,812.99 = 53,093.66/x
  3. Step 3: Cross multiply
    81,776.17x = 112,812.99 × 53,093.66
  4. Step 4: Simplify right side
    81,776.17x = 5,989,654,534.64
  5. Step 5: Solve for x
    x = 5,989,654,534.64/81,776.17
  6. Step 6: Final answer
    x = 73,244.50

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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.