Home / 91,935.36-126,884.52-56,145.96

Finding the Fourth Proportional to 91,935.36, 126,884.52 and 56,145.96

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Solution

The fourth proportional to 91,935.36, 126,884.52 and 56,145.96 is: 77,489.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,935.36 : 126,884.52 = 56,145.96 : x
  2. Step 2: Convert to fraction form
    91,935.36/126,884.52 = 56,145.96/x
  3. Step 3: Cross multiply
    91,935.36x = 126,884.52 × 56,145.96
  4. Step 4: Simplify right side
    91,935.36x = 7,124,053,184.54
  5. Step 5: Solve for x
    x = 7,124,053,184.54/91,935.36
  6. Step 6: Final answer
    x = 77,489.81

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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.