Home / 76,480.02-105,499.89-71,067.66

Finding the Fourth Proportional to 76,480.02, 105,499.89 and 71,067.66

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Solution

The fourth proportional to 76,480.02, 105,499.89 and 71,067.66 is: 98,033.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,480.02 : 105,499.89 = 71,067.66 : x
  2. Step 2: Convert to fraction form
    76,480.02/105,499.89 = 71,067.66/x
  3. Step 3: Cross multiply
    76,480.02x = 105,499.89 × 71,067.66
  4. Step 4: Simplify right side
    76,480.02x = 7,497,630,312.56
  5. Step 5: Solve for x
    x = 7,497,630,312.56/76,480.02
  6. Step 6: Final answer
    x = 98,033.84

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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.