Home / 98,548.46-135,993.51-56,098.78

Finding the Fourth Proportional to 98,548.46, 135,993.51 and 56,098.78

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Solution

The fourth proportional to 98,548.46, 135,993.51 and 56,098.78 is: 77,414.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,548.46 : 135,993.51 = 56,098.78 : x
  2. Step 2: Convert to fraction form
    98,548.46/135,993.51 = 56,098.78/x
  3. Step 3: Cross multiply
    98,548.46x = 135,993.51 × 56,098.78
  4. Step 4: Simplify right side
    98,548.46x = 7,629,069,998.92
  5. Step 5: Solve for x
    x = 7,629,069,998.92/98,548.46
  6. Step 6: Final answer
    x = 77,414.40

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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.