Home / 65,739.93-90,764.87-38,891.04

Finding the Fourth Proportional to 65,739.93, 90,764.87 and 38,891.04

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Solution

The fourth proportional to 65,739.93, 90,764.87 and 38,891.04 is: 53,695.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,739.93 : 90,764.87 = 38,891.04 : x
  2. Step 2: Convert to fraction form
    65,739.93/90,764.87 = 38,891.04/x
  3. Step 3: Cross multiply
    65,739.93x = 90,764.87 × 38,891.04
  4. Step 4: Simplify right side
    65,739.93x = 3,529,939,995.31
  5. Step 5: Solve for x
    x = 3,529,939,995.31/65,739.93
  6. Step 6: Final answer
    x = 53,695.52

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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.