Home / 90,928.45-125,533.30-60,764.86

Finding the Fourth Proportional to 90,928.45, 125,533.30 and 60,764.86

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Solution

The fourth proportional to 90,928.45, 125,533.30 and 60,764.86 is: 83,890.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,928.45 : 125,533.30 = 60,764.86 : x
  2. Step 2: Convert to fraction form
    90,928.45/125,533.30 = 60,764.86/x
  3. Step 3: Cross multiply
    90,928.45x = 125,533.30 × 60,764.86
  4. Step 4: Simplify right side
    90,928.45x = 7,628,013,399.84
  5. Step 5: Solve for x
    x = 7,628,013,399.84/90,928.45
  6. Step 6: Final answer
    x = 83,890.28

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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.