Home / 91,140.42-125,785.14-52,891.75

Finding the Fourth Proportional to 91,140.42, 125,785.14 and 52,891.75

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Solution

The fourth proportional to 91,140.42, 125,785.14 and 52,891.75 is: 72,997.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,140.42 : 125,785.14 = 52,891.75 : x
  2. Step 2: Convert to fraction form
    91,140.42/125,785.14 = 52,891.75/x
  3. Step 3: Cross multiply
    91,140.42x = 125,785.14 × 52,891.75
  4. Step 4: Simplify right side
    91,140.42x = 6,652,996,178.60
  5. Step 5: Solve for x
    x = 6,652,996,178.60/91,140.42
  6. Step 6: Final answer
    x = 72,997.21

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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.