Home / 76,127.31-114,187.59-19,966.14

Finding the Fourth Proportional to 76,127.31, 114,187.59 and 19,966.14

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Solution

The fourth proportional to 76,127.31, 114,187.59 and 19,966.14 is: 29,948.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,127.31 : 114,187.59 = 19,966.14 : x
  2. Step 2: Convert to fraction form
    76,127.31/114,187.59 = 19,966.14/x
  3. Step 3: Cross multiply
    76,127.31x = 114,187.59 × 19,966.14
  4. Step 4: Simplify right side
    76,127.31x = 2,279,885,408.20
  5. Step 5: Solve for x
    x = 2,279,885,408.20/76,127.31
  6. Step 6: Final answer
    x = 29,948.32

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1.5x scale

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.