Home / 88,419.35-121,982.65-54,417.58

Finding the Fourth Proportional to 88,419.35, 121,982.65 and 54,417.58

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Solution

The fourth proportional to 88,419.35, 121,982.65 and 54,417.58 is: 75,074.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,419.35 : 121,982.65 = 54,417.58 : x
  2. Step 2: Convert to fraction form
    88,419.35/121,982.65 = 54,417.58/x
  3. Step 3: Cross multiply
    88,419.35x = 121,982.65 × 54,417.58
  4. Step 4: Simplify right side
    88,419.35x = 6,638,000,173.99
  5. Step 5: Solve for x
    x = 6,638,000,173.99/88,419.35
  6. Step 6: Final answer
    x = 75,074.06

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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.