Home / 88,351.80-121,928.40-50,633.28

Finding the Fourth Proportional to 88,351.80, 121,928.40 and 50,633.28

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Solution

The fourth proportional to 88,351.80, 121,928.40 and 50,633.28 is: 69,875.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,351.80 : 121,928.40 = 50,633.28 : x
  2. Step 2: Convert to fraction form
    88,351.80/121,928.40 = 50,633.28/x
  3. Step 3: Cross multiply
    88,351.80x = 121,928.40 × 50,633.28
  4. Step 4: Simplify right side
    88,351.80x = 6,173,634,817.15
  5. Step 5: Solve for x
    x = 6,173,634,817.15/88,351.80
  6. Step 6: Final answer
    x = 69,875.60

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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.