Home / 81,105.17-111,926.81-45,295.22

Finding the Fourth Proportional to 81,105.17, 111,926.81 and 45,295.22

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Solution

The fourth proportional to 81,105.17, 111,926.81 and 45,295.22 is: 62,508.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,105.17 : 111,926.81 = 45,295.22 : x
  2. Step 2: Convert to fraction form
    81,105.17/111,926.81 = 45,295.22/x
  3. Step 3: Cross multiply
    81,105.17x = 111,926.81 × 45,295.22
  4. Step 4: Simplify right side
    81,105.17x = 5,069,749,875.90
  5. Step 5: Solve for x
    x = 5,069,749,875.90/81,105.17
  6. Step 6: Final answer
    x = 62,508.35

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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.