Home / 86,772.61-119,745.30-48,531.70

Finding the Fourth Proportional to 86,772.61, 119,745.30 and 48,531.70

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Solution

The fourth proportional to 86,772.61, 119,745.30 and 48,531.70 is: 66,973.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,772.61 : 119,745.30 = 48,531.70 : x
  2. Step 2: Convert to fraction form
    86,772.61/119,745.30 = 48,531.70/x
  3. Step 3: Cross multiply
    86,772.61x = 119,745.30 × 48,531.70
  4. Step 4: Simplify right side
    86,772.61x = 5,811,442,976.01
  5. Step 5: Solve for x
    x = 5,811,442,976.01/86,772.61
  6. Step 6: Final answer
    x = 66,973.24

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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.