Home / 88,355.21-121,921.08-52,538.30

Finding the Fourth Proportional to 88,355.21, 121,921.08 and 52,538.30

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Solution

The fourth proportional to 88,355.21, 121,921.08 and 52,538.30 is: 72,497.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,355.21 : 121,921.08 = 52,538.30 : x
  2. Step 2: Convert to fraction form
    88,355.21/121,921.08 = 52,538.30/x
  3. Step 3: Cross multiply
    88,355.21x = 121,921.08 × 52,538.30
  4. Step 4: Simplify right side
    88,355.21x = 6,405,525,667.76
  5. Step 5: Solve for x
    x = 6,405,525,667.76/88,355.21
  6. Step 6: Final answer
    x = 72,497.43

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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.