Home / 98,516.25-135,952.58-56,074.78

Finding the Fourth Proportional to 98,516.25, 135,952.58 and 56,074.78

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Solution

The fourth proportional to 98,516.25, 135,952.58 and 56,074.78 is: 77,383.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,516.25 : 135,952.58 = 56,074.78 : x
  2. Step 2: Convert to fraction form
    98,516.25/135,952.58 = 56,074.78/x
  3. Step 3: Cross multiply
    98,516.25x = 135,952.58 × 56,074.78
  4. Step 4: Simplify right side
    98,516.25x = 7,623,511,008.64
  5. Step 5: Solve for x
    x = 7,623,511,008.64/98,516.25
  6. Step 6: Final answer
    x = 77,383.28

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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.