Home / 88,206.72-121,723.12-47,919.56

Finding the Fourth Proportional to 88,206.72, 121,723.12 and 47,919.56

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Solution

The fourth proportional to 88,206.72, 121,723.12 and 47,919.56 is: 66,127.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,206.72 : 121,723.12 = 47,919.56 : x
  2. Step 2: Convert to fraction form
    88,206.72/121,723.12 = 47,919.56/x
  3. Step 3: Cross multiply
    88,206.72x = 121,723.12 × 47,919.56
  4. Step 4: Simplify right side
    88,206.72x = 5,832,918,352.23
  5. Step 5: Solve for x
    x = 5,832,918,352.23/88,206.72
  6. Step 6: Final answer
    x = 66,127.82

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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.