Home / 81,173.04-112,018.46-45,363.03

Finding the Fourth Proportional to 81,173.04, 112,018.46 and 45,363.03

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Solution

The fourth proportional to 81,173.04, 112,018.46 and 45,363.03 is: 62,600.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,173.04 : 112,018.46 = 45,363.03 : x
  2. Step 2: Convert to fraction form
    81,173.04/112,018.46 = 45,363.03/x
  3. Step 3: Cross multiply
    81,173.04x = 112,018.46 × 45,363.03
  4. Step 4: Simplify right side
    81,173.04x = 5,081,496,534.72
  5. Step 5: Solve for x
    x = 5,081,496,534.72/81,173.04
  6. Step 6: Final answer
    x = 62,600.79

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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.