Home / 90,809.32-125,334.12-56,833.60

Finding the Fourth Proportional to 90,809.32, 125,334.12 and 56,833.60

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Solution

The fourth proportional to 90,809.32, 125,334.12 and 56,833.60 is: 78,441.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,809.32 : 125,334.12 = 56,833.60 : x
  2. Step 2: Convert to fraction form
    90,809.32/125,334.12 = 56,833.60/x
  3. Step 3: Cross multiply
    90,809.32x = 125,334.12 × 56,833.60
  4. Step 4: Simplify right side
    90,809.32x = 7,123,189,242.43
  5. Step 5: Solve for x
    x = 7,123,189,242.43/90,809.32
  6. Step 6: Final answer
    x = 78,441.17

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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.