Home / 91,606.68-137,429.77-28,425.47

Finding the Fourth Proportional to 91,606.68, 137,429.77 and 28,425.47

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Solution

The fourth proportional to 91,606.68, 137,429.77 and 28,425.47 is: 42,644.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,606.68 : 137,429.77 = 28,425.47 : x
  2. Step 2: Convert to fraction form
    91,606.68/137,429.77 = 28,425.47/x
  3. Step 3: Cross multiply
    91,606.68x = 137,429.77 × 28,425.47
  4. Step 4: Simplify right side
    91,606.68x = 3,906,505,804.24
  5. Step 5: Solve for x
    x = 3,906,505,804.24/91,606.68
  6. Step 6: Final answer
    x = 42,644.33

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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.