Home / 76,146.04-114,210.81-19,991.79

Finding the Fourth Proportional to 76,146.04, 114,210.81 and 19,991.79

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Solution

The fourth proportional to 76,146.04, 114,210.81 and 19,991.79 is: 29,985.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,146.04 : 114,210.81 = 19,991.79 : x
  2. Step 2: Convert to fraction form
    76,146.04/114,210.81 = 19,991.79/x
  3. Step 3: Cross multiply
    76,146.04x = 114,210.81 × 19,991.79
  4. Step 4: Simplify right side
    76,146.04x = 2,283,278,529.25
  5. Step 5: Solve for x
    x = 2,283,278,529.25/76,146.04
  6. Step 6: Final answer
    x = 29,985.52

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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.