Home / 98,157.12-135,452.16-55,710

Finding the Fourth Proportional to 98,157.12, 135,452.16 and 55,710

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Solution

The fourth proportional to 98,157.12, 135,452.16 and 55,710 is: 76,877.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,157.12 : 135,452.16 = 55,710 : x
  2. Step 2: Convert to fraction form
    98,157.12/135,452.16 = 55,710/x
  3. Step 3: Cross multiply
    98,157.12x = 135,452.16 × 55,710
  4. Step 4: Simplify right side
    98,157.12x = 7,546,039,833.60
  5. Step 5: Solve for x
    x = 7,546,039,833.60/98,157.12
  6. Step 6: Final answer
    x = 76,877.15

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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.