Home / 98,077.10-135,342.42-55,634.72

Finding the Fourth Proportional to 98,077.10, 135,342.42 and 55,634.72

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Solution

The fourth proportional to 98,077.10, 135,342.42 and 55,634.72 is: 76,773.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,077.10 : 135,342.42 = 55,634.72 : x
  2. Step 2: Convert to fraction form
    98,077.10/135,342.42 = 55,634.72/x
  3. Step 3: Cross multiply
    98,077.10x = 135,342.42 × 55,634.72
  4. Step 4: Simplify right side
    98,077.10x = 7,529,737,770.55
  5. Step 5: Solve for x
    x = 7,529,737,770.55/98,077.10
  6. Step 6: Final answer
    x = 76,773.66

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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.