Home / 98,040.62-135,288.15-55,603.10

Finding the Fourth Proportional to 98,040.62, 135,288.15 and 55,603.10

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Solution

The fourth proportional to 98,040.62, 135,288.15 and 55,603.10 is: 76,727.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,040.62 : 135,288.15 = 55,603.10 : x
  2. Step 2: Convert to fraction form
    98,040.62/135,288.15 = 55,603.10/x
  3. Step 3: Cross multiply
    98,040.62x = 135,288.15 × 55,603.10
  4. Step 4: Simplify right side
    98,040.62x = 7,522,440,533.27
  5. Step 5: Solve for x
    x = 7,522,440,533.27/98,040.62
  6. Step 6: Final answer
    x = 76,727.79

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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.