Home / 82,670.85-124,057.31-38,289.33

Finding the Fourth Proportional to 82,670.85, 124,057.31 and 38,289.33

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Solution

The fourth proportional to 82,670.85, 124,057.31 and 38,289.33 is: 57,457.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,670.85 : 124,057.31 = 38,289.33 : x
  2. Step 2: Convert to fraction form
    82,670.85/124,057.31 = 38,289.33/x
  3. Step 3: Cross multiply
    82,670.85x = 124,057.31 × 38,289.33
  4. Step 4: Simplify right side
    82,670.85x = 4,750,071,090.06
  5. Step 5: Solve for x
    x = 4,750,071,090.06/82,670.85
  6. Step 6: Final answer
    x = 57,457.63

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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.