Home / 81,153.39-111,832.20-62,054.82

Finding the Fourth Proportional to 81,153.39, 111,832.20 and 62,054.82

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Solution

The fourth proportional to 81,153.39, 111,832.20 and 62,054.82 is: 85,513.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,153.39 : 111,832.20 = 62,054.82 : x
  2. Step 2: Convert to fraction form
    81,153.39/111,832.20 = 62,054.82/x
  3. Step 3: Cross multiply
    81,153.39x = 111,832.20 × 62,054.82
  4. Step 4: Simplify right side
    81,153.39x = 6,939,727,041.20
  5. Step 5: Solve for x
    x = 6,939,727,041.20/81,153.39
  6. Step 6: Final answer
    x = 85,513.70

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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.