Home / 91,115.64-136,683.18-38,530.44

Finding the Fourth Proportional to 91,115.64, 136,683.18 and 38,530.44

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Solution

The fourth proportional to 91,115.64, 136,683.18 and 38,530.44 is: 57,799.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,115.64 : 136,683.18 = 38,530.44 : x
  2. Step 2: Convert to fraction form
    91,115.64/136,683.18 = 38,530.44/x
  3. Step 3: Cross multiply
    91,115.64x = 136,683.18 × 38,530.44
  4. Step 4: Simplify right side
    91,115.64x = 5,266,463,066.00
  5. Step 5: Solve for x
    x = 5,266,463,066.00/91,115.64
  6. Step 6: Final answer
    x = 57,799.77

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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.