Home / 81,816.58-112,778.22-74,952.14

Finding the Fourth Proportional to 81,816.58, 112,778.22 and 74,952.14

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Solution

The fourth proportional to 81,816.58, 112,778.22 and 74,952.14 is: 103,316.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,816.58 : 112,778.22 = 74,952.14 : x
  2. Step 2: Convert to fraction form
    81,816.58/112,778.22 = 74,952.14/x
  3. Step 3: Cross multiply
    81,816.58x = 112,778.22 × 74,952.14
  4. Step 4: Simplify right side
    81,816.58x = 8,452,968,370.50
  5. Step 5: Solve for x
    x = 8,452,968,370.50/81,816.58
  6. Step 6: Final answer
    x = 103,316.08

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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.