Home / 86,685.49-119,634.47-52,691.41

Finding the Fourth Proportional to 86,685.49, 119,634.47 and 52,691.41

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Solution

The fourth proportional to 86,685.49, 119,634.47 and 52,691.41 is: 72,719.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,685.49 : 119,634.47 = 52,691.41 : x
  2. Step 2: Convert to fraction form
    86,685.49/119,634.47 = 52,691.41/x
  3. Step 3: Cross multiply
    86,685.49x = 119,634.47 × 52,691.41
  4. Step 4: Simplify right side
    86,685.49x = 6,303,708,645.45
  5. Step 5: Solve for x
    x = 6,303,708,645.45/86,685.49
  6. Step 6: Final answer
    x = 72,719.31

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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.