Home / 98,354.18-135,728.55-55,333.69

Finding the Fourth Proportional to 98,354.18, 135,728.55 and 55,333.69

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Solution

The fourth proportional to 98,354.18, 135,728.55 and 55,333.69 is: 76,360.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,354.18 : 135,728.55 = 55,333.69 : x
  2. Step 2: Convert to fraction form
    98,354.18/135,728.55 = 55,333.69/x
  3. Step 3: Cross multiply
    98,354.18x = 135,728.55 × 55,333.69
  4. Step 4: Simplify right side
    98,354.18x = 7,510,361,170.53
  5. Step 5: Solve for x
    x = 7,510,361,170.53/98,354.18
  6. Step 6: Final answer
    x = 76,360.36

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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.