Home / 88,888.23-122,747.58-57,112.47

Finding the Fourth Proportional to 88,888.23, 122,747.58 and 57,112.47

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Solution

The fourth proportional to 88,888.23, 122,747.58 and 57,112.47 is: 78,867.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,888.23 : 122,747.58 = 57,112.47 : x
  2. Step 2: Convert to fraction form
    88,888.23/122,747.58 = 57,112.47/x
  3. Step 3: Cross multiply
    88,888.23x = 122,747.58 × 57,112.47
  4. Step 4: Simplify right side
    88,888.23x = 7,010,417,480.32
  5. Step 5: Solve for x
    x = 7,010,417,480.32/88,888.23
  6. Step 6: Final answer
    x = 78,867.78

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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.