Home / 91,267.12-125,033.69-87,855.64

Finding the Fourth Proportional to 91,267.12, 125,033.69 and 87,855.64

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Solution

The fourth proportional to 91,267.12, 125,033.69 and 87,855.64 is: 120,360.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,267.12 : 125,033.69 = 87,855.64 : x
  2. Step 2: Convert to fraction form
    91,267.12/125,033.69 = 87,855.64/x
  3. Step 3: Cross multiply
    91,267.12x = 125,033.69 × 87,855.64
  4. Step 4: Simplify right side
    91,267.12x = 10,984,914,856.51
  5. Step 5: Solve for x
    x = 10,984,914,856.51/91,267.12
  6. Step 6: Final answer
    x = 120,360.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.