Home / 97,898.58-135,121.77-55,480.50

Finding the Fourth Proportional to 97,898.58, 135,121.77 and 55,480.50

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Solution

The fourth proportional to 97,898.58, 135,121.77 and 55,480.50 is: 76,575.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,898.58 : 135,121.77 = 55,480.50 : x
  2. Step 2: Convert to fraction form
    97,898.58/135,121.77 = 55,480.50/x
  3. Step 3: Cross multiply
    97,898.58x = 135,121.77 × 55,480.50
  4. Step 4: Simplify right side
    97,898.58x = 7,496,623,360.49
  5. Step 5: Solve for x
    x = 7,496,623,360.49/97,898.58
  6. Step 6: Final answer
    x = 76,575.40

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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.