Home / 98,316.42-135,688.18-55,881.33

Finding the Fourth Proportional to 98,316.42, 135,688.18 and 55,881.33

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Solution

The fourth proportional to 98,316.42, 135,688.18 and 55,881.33 is: 77,122.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,316.42 : 135,688.18 = 55,881.33 : x
  2. Step 2: Convert to fraction form
    98,316.42/135,688.18 = 55,881.33/x
  3. Step 3: Cross multiply
    98,316.42x = 135,688.18 × 55,881.33
  4. Step 4: Simplify right side
    98,316.42x = 7,582,436,442.60
  5. Step 5: Solve for x
    x = 7,582,436,442.60/98,316.42
  6. Step 6: Final answer
    x = 77,122.79

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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.