Home / 81,199.41-112,077.83-55,709.93

Finding the Fourth Proportional to 81,199.41, 112,077.83 and 55,709.93

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Solution

The fourth proportional to 81,199.41, 112,077.83 and 55,709.93 is: 76,895.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,199.41 : 112,077.83 = 55,709.93 : x
  2. Step 2: Convert to fraction form
    81,199.41/112,077.83 = 55,709.93/x
  3. Step 3: Cross multiply
    81,199.41x = 112,077.83 × 55,709.93
  4. Step 4: Simplify right side
    81,199.41x = 6,243,847,224.91
  5. Step 5: Solve for x
    x = 6,243,847,224.91/81,199.41
  6. Step 6: Final answer
    x = 76,895.23

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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.