Home / 81,015.15-111,842.95-59,186.95

Finding the Fourth Proportional to 81,015.15, 111,842.95 and 59,186.95

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Solution

The fourth proportional to 81,015.15, 111,842.95 and 59,186.95 is: 81,708.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,015.15 : 111,842.95 = 59,186.95 : x
  2. Step 2: Convert to fraction form
    81,015.15/111,842.95 = 59,186.95/x
  3. Step 3: Cross multiply
    81,015.15x = 111,842.95 × 59,186.95
  4. Step 4: Simplify right side
    81,015.15x = 6,619,642,527.84
  5. Step 5: Solve for x
    x = 6,619,642,527.84/81,015.15
  6. Step 6: Final answer
    x = 81,708.70

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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.