Home / 91,043.28-125,639.28-50,756.64

Finding the Fourth Proportional to 91,043.28, 125,639.28 and 50,756.64

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Solution

The fourth proportional to 91,043.28, 125,639.28 and 50,756.64 is: 70,043.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,043.28 : 125,639.28 = 50,756.64 : x
  2. Step 2: Convert to fraction form
    91,043.28/125,639.28 = 50,756.64/x
  3. Step 3: Cross multiply
    91,043.28x = 125,639.28 × 50,756.64
  4. Step 4: Simplify right side
    91,043.28x = 6,377,027,704.82
  5. Step 5: Solve for x
    x = 6,377,027,704.82/91,043.28
  6. Step 6: Final answer
    x = 70,043.91

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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.