Home / 90,979.78-125,551.02-50,693.44

Finding the Fourth Proportional to 90,979.78, 125,551.02 and 50,693.44

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Solution

The fourth proportional to 90,979.78, 125,551.02 and 50,693.44 is: 69,956.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,979.78 : 125,551.02 = 50,693.44 : x
  2. Step 2: Convert to fraction form
    90,979.78/125,551.02 = 50,693.44/x
  3. Step 3: Cross multiply
    90,979.78x = 125,551.02 × 50,693.44
  4. Step 4: Simplify right side
    90,979.78x = 6,364,613,099.31
  5. Step 5: Solve for x
    x = 6,364,613,099.31/90,979.78
  6. Step 6: Final answer
    x = 69,956.35

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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.