Home / 84,015.72-126,040.86-57,732.84

Finding the Fourth Proportional to 84,015.72, 126,040.86 and 57,732.84

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Solution

The fourth proportional to 84,015.72, 126,040.86 and 57,732.84 is: 86,611.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,015.72 : 126,040.86 = 57,732.84 : x
  2. Step 2: Convert to fraction form
    84,015.72/126,040.86 = 57,732.84/x
  3. Step 3: Cross multiply
    84,015.72x = 126,040.86 × 57,732.84
  4. Step 4: Simplify right side
    84,015.72x = 7,276,696,803.84
  5. Step 5: Solve for x
    x = 7,276,696,803.84/84,015.72
  6. Step 6: Final answer
    x = 86,611.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.