Home / 86,419.66-119,268.75-54,587.02

Finding the Fourth Proportional to 86,419.66, 119,268.75 and 54,587.02

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Solution

The fourth proportional to 86,419.66, 119,268.75 and 54,587.02 is: 75,336.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,419.66 : 119,268.75 = 54,587.02 : x
  2. Step 2: Convert to fraction form
    86,419.66/119,268.75 = 54,587.02/x
  3. Step 3: Cross multiply
    86,419.66x = 119,268.75 × 54,587.02
  4. Step 4: Simplify right side
    86,419.66x = 6,510,525,641.63
  5. Step 5: Solve for x
    x = 6,510,525,641.63/86,419.66
  6. Step 6: Final answer
    x = 75,336.16

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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.