Home / 90,808.32-125,332.74-56,832.60

Finding the Fourth Proportional to 90,808.32, 125,332.74 and 56,832.60

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Solution

The fourth proportional to 90,808.32, 125,332.74 and 56,832.60 is: 78,439.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,808.32 : 125,332.74 = 56,832.60 : x
  2. Step 2: Convert to fraction form
    90,808.32/125,332.74 = 56,832.60/x
  3. Step 3: Cross multiply
    90,808.32x = 125,332.74 × 56,832.60
  4. Step 4: Simplify right side
    90,808.32x = 7,122,985,479.32
  5. Step 5: Solve for x
    x = 7,122,985,479.32/90,808.32
  6. Step 6: Final answer
    x = 78,439.79

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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.