Home / 91,357.68-137,052.24-31,383.32

Finding the Fourth Proportional to 91,357.68, 137,052.24 and 31,383.32

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Solution

The fourth proportional to 91,357.68, 137,052.24 and 31,383.32 is: 47,080.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,357.68 : 137,052.24 = 31,383.32 : x
  2. Step 2: Convert to fraction form
    91,357.68/137,052.24 = 31,383.32/x
  3. Step 3: Cross multiply
    91,357.68x = 137,052.24 × 31,383.32
  4. Step 4: Simplify right side
    91,357.68x = 4,301,154,304.64
  5. Step 5: Solve for x
    x = 4,301,154,304.64/91,357.68
  6. Step 6: Final answer
    x = 47,080.38

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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.