Home / 88,206.58-121,724.49-47,920.06

Finding the Fourth Proportional to 88,206.58, 121,724.49 and 47,920.06

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Solution

The fourth proportional to 88,206.58, 121,724.49 and 47,920.06 is: 66,129.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,206.58 : 121,724.49 = 47,920.06 : x
  2. Step 2: Convert to fraction form
    88,206.58/121,724.49 = 47,920.06/x
  3. Step 3: Cross multiply
    88,206.58x = 121,724.49 × 47,920.06
  4. Step 4: Simplify right side
    88,206.58x = 5,833,044,864.27
  5. Step 5: Solve for x
    x = 5,833,044,864.27/88,206.58
  6. Step 6: Final answer
    x = 66,129.36

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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.