Home / 90,826.64-125,321.10-55,018.16

Finding the Fourth Proportional to 90,826.64, 125,321.10 and 55,018.16

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Solution

The fourth proportional to 90,826.64, 125,321.10 and 55,018.16 is: 75,913.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,826.64 : 125,321.10 = 55,018.16 : x
  2. Step 2: Convert to fraction form
    90,826.64/125,321.10 = 55,018.16/x
  3. Step 3: Cross multiply
    90,826.64x = 125,321.10 × 55,018.16
  4. Step 4: Simplify right side
    90,826.64x = 6,894,936,331.18
  5. Step 5: Solve for x
    x = 6,894,936,331.18/90,826.64
  6. Step 6: Final answer
    x = 75,913.15

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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.