Home / 98,320.11-135,693.30-55,885.02

Finding the Fourth Proportional to 98,320.11, 135,693.30 and 55,885.02

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Solution

The fourth proportional to 98,320.11, 135,693.30 and 55,885.02 is: 77,127.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,320.11 : 135,693.30 = 55,885.02 : x
  2. Step 2: Convert to fraction form
    98,320.11/135,693.30 = 55,885.02/x
  3. Step 3: Cross multiply
    98,320.11x = 135,693.30 × 55,885.02
  4. Step 4: Simplify right side
    98,320.11x = 7,583,222,784.37
  5. Step 5: Solve for x
    x = 7,583,222,784.37/98,320.11
  6. Step 6: Final answer
    x = 77,127.89

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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.