Home / 81,237.40-121,858.59-22,074.32

Finding the Fourth Proportional to 81,237.40, 121,858.59 and 22,074.32

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Solution

The fourth proportional to 81,237.40, 121,858.59 and 22,074.32 is: 33,112.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,237.40 : 121,858.59 = 22,074.32 : x
  2. Step 2: Convert to fraction form
    81,237.40/121,858.59 = 22,074.32/x
  3. Step 3: Cross multiply
    81,237.40x = 121,858.59 × 22,074.32
  4. Step 4: Simplify right side
    81,237.40x = 2,689,945,897.83
  5. Step 5: Solve for x
    x = 2,689,945,897.83/81,237.40
  6. Step 6: Final answer
    x = 33,112.16

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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.