Home / 88,221.96-121,760.82-64,427.40

Finding the Fourth Proportional to 88,221.96, 121,760.82 and 64,427.40

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Solution

The fourth proportional to 88,221.96, 121,760.82 and 64,427.40 is: 88,920.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,221.96 : 121,760.82 = 64,427.40 : x
  2. Step 2: Convert to fraction form
    88,221.96/121,760.82 = 64,427.40/x
  3. Step 3: Cross multiply
    88,221.96x = 121,760.82 × 64,427.40
  4. Step 4: Simplify right side
    88,221.96x = 7,844,733,054.47
  5. Step 5: Solve for x
    x = 7,844,733,054.47/88,221.96
  6. Step 6: Final answer
    x = 88,920.41

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1.5x scale

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.