Home / 85,950.58-128,872.86-29,777.62

Finding the Fourth Proportional to 85,950.58, 128,872.86 and 29,777.62

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Solution

The fourth proportional to 85,950.58, 128,872.86 and 29,777.62 is: 44,648.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,950.58 : 128,872.86 = 29,777.62 : x
  2. Step 2: Convert to fraction form
    85,950.58/128,872.86 = 29,777.62/x
  3. Step 3: Cross multiply
    85,950.58x = 128,872.86 × 29,777.62
  4. Step 4: Simplify right side
    85,950.58x = 3,837,527,053.39
  5. Step 5: Solve for x
    x = 3,837,527,053.39/85,950.58
  6. Step 6: Final answer
    x = 44,648.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.