Home / 98,258.72-135,593.12-55,812.56

Finding the Fourth Proportional to 98,258.72, 135,593.12 and 55,812.56

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Solution

The fourth proportional to 98,258.72, 135,593.12 and 55,812.56 is: 77,019.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,258.72 : 135,593.12 = 55,812.56 : x
  2. Step 2: Convert to fraction form
    98,258.72/135,593.12 = 55,812.56/x
  3. Step 3: Cross multiply
    98,258.72x = 135,593.12 × 55,812.56
  4. Step 4: Simplify right side
    98,258.72x = 7,567,798,607.15
  5. Step 5: Solve for x
    x = 7,567,798,607.15/98,258.72
  6. Step 6: Final answer
    x = 77,019.11

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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.