Home / 82,728.71-124,093.07-57,817.41

Finding the Fourth Proportional to 82,728.71, 124,093.07 and 57,817.41

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Solution

The fourth proportional to 82,728.71, 124,093.07 and 57,817.41 is: 86,726.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,728.71 : 124,093.07 = 57,817.41 : x
  2. Step 2: Convert to fraction form
    82,728.71/124,093.07 = 57,817.41/x
  3. Step 3: Cross multiply
    82,728.71x = 124,093.07 × 57,817.41
  4. Step 4: Simplify right side
    82,728.71x = 7,174,740,050.89
  5. Step 5: Solve for x
    x = 7,174,740,050.89/82,728.71
  6. Step 6: Final answer
    x = 86,726.13

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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.