Home / 98,438.14-135,832.44-55,412.38

Finding the Fourth Proportional to 98,438.14, 135,832.44 and 55,412.38

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Solution

The fourth proportional to 98,438.14, 135,832.44 and 55,412.38 is: 76,462.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,438.14 : 135,832.44 = 55,412.38 : x
  2. Step 2: Convert to fraction form
    98,438.14/135,832.44 = 55,412.38/x
  3. Step 3: Cross multiply
    98,438.14x = 135,832.44 × 55,412.38
  4. Step 4: Simplify right side
    98,438.14x = 7,526,798,781.61
  5. Step 5: Solve for x
    x = 7,526,798,781.61/98,438.14
  6. Step 6: Final answer
    x = 76,462.22

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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.