Home / 76,463.81-114,716.40-54,417.15

Finding the Fourth Proportional to 76,463.81, 114,716.40 and 54,417.15

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Solution

The fourth proportional to 76,463.81, 114,716.40 and 54,417.15 is: 81,640.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,463.81 : 114,716.40 = 54,417.15 : x
  2. Step 2: Convert to fraction form
    76,463.81/114,716.40 = 54,417.15/x
  3. Step 3: Cross multiply
    76,463.81x = 114,716.40 × 54,417.15
  4. Step 4: Simplify right side
    76,463.81x = 6,242,539,648.29
  5. Step 5: Solve for x
    x = 6,242,539,648.29/76,463.81
  6. Step 6: Final answer
    x = 81,640.44

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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.