Home / 76,083.36-114,125.28-20,679.36

Finding the Fourth Proportional to 76,083.36, 114,125.28 and 20,679.36

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Solution

The fourth proportional to 76,083.36, 114,125.28 and 20,679.36 is: 31,019.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,083.36 : 114,125.28 = 20,679.36 : x
  2. Step 2: Convert to fraction form
    76,083.36/114,125.28 = 20,679.36/x
  3. Step 3: Cross multiply
    76,083.36x = 114,125.28 × 20,679.36
  4. Step 4: Simplify right side
    76,083.36x = 2,360,037,750.22
  5. Step 5: Solve for x
    x = 2,360,037,750.22/76,083.36
  6. Step 6: Final answer
    x = 31,019.11

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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.