Home / 98,316.11-135,687.75-55,881.02

Finding the Fourth Proportional to 98,316.11, 135,687.75 and 55,881.02

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Solution

The fourth proportional to 98,316.11, 135,687.75 and 55,881.02 is: 77,122.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,316.11 : 135,687.75 = 55,881.02 : x
  2. Step 2: Convert to fraction form
    98,316.11/135,687.75 = 55,881.02/x
  3. Step 3: Cross multiply
    98,316.11x = 135,687.75 × 55,881.02
  4. Step 4: Simplify right side
    98,316.11x = 7,582,369,871.51
  5. Step 5: Solve for x
    x = 7,582,369,871.51/98,316.11
  6. Step 6: Final answer
    x = 77,122.35

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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.