Home / 81,237.22-112,120.05-49,416.10

Finding the Fourth Proportional to 81,237.22, 112,120.05 and 49,416.10

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Solution

The fourth proportional to 81,237.22, 112,120.05 and 49,416.10 is: 68,201.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,237.22 : 112,120.05 = 49,416.10 : x
  2. Step 2: Convert to fraction form
    81,237.22/112,120.05 = 49,416.10/x
  3. Step 3: Cross multiply
    81,237.22x = 112,120.05 × 49,416.10
  4. Step 4: Simplify right side
    81,237.22x = 5,540,535,602.81
  5. Step 5: Solve for x
    x = 5,540,535,602.81/81,237.22
  6. Step 6: Final answer
    x = 68,201.94

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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.