Home / 90,735.24-125,228.25-65,325.71

Finding the Fourth Proportional to 90,735.24, 125,228.25 and 65,325.71

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Solution

The fourth proportional to 90,735.24, 125,228.25 and 65,325.71 is: 90,159.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,735.24 : 125,228.25 = 65,325.71 : x
  2. Step 2: Convert to fraction form
    90,735.24/125,228.25 = 65,325.71/x
  3. Step 3: Cross multiply
    90,735.24x = 125,228.25 × 65,325.71
  4. Step 4: Simplify right side
    90,735.24x = 8,180,624,343.31
  5. Step 5: Solve for x
    x = 8,180,624,343.31/90,735.24
  6. Step 6: Final answer
    x = 90,159.28

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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.