Home / 88,270.21-121,815.41-53,816.93

Finding the Fourth Proportional to 88,270.21, 121,815.41 and 53,816.93

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Solution

The fourth proportional to 88,270.21, 121,815.41 and 53,816.93 is: 74,268.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,270.21 : 121,815.41 = 53,816.93 : x
  2. Step 2: Convert to fraction form
    88,270.21/121,815.41 = 53,816.93/x
  3. Step 3: Cross multiply
    88,270.21x = 121,815.41 × 53,816.93
  4. Step 4: Simplify right side
    88,270.21x = 6,555,730,618.96
  5. Step 5: Solve for x
    x = 6,555,730,618.96/88,270.21
  6. Step 6: Final answer
    x = 74,268.89

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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.