Home / 91,708.32-137,574.72-36,291.36

Finding the Fourth Proportional to 91,708.32, 137,574.72 and 36,291.36

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Solution

The fourth proportional to 91,708.32, 137,574.72 and 36,291.36 is: 54,441.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,708.32 : 137,574.72 = 36,291.36 : x
  2. Step 2: Convert to fraction form
    91,708.32/137,574.72 = 36,291.36/x
  3. Step 3: Cross multiply
    91,708.32x = 137,574.72 × 36,291.36
  4. Step 4: Simplify right side
    91,708.32x = 4,992,773,690.42
  5. Step 5: Solve for x
    x = 4,992,773,690.42/91,708.32
  6. Step 6: Final answer
    x = 54,441.88

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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.