Home / 76,965.36-106,113.33-63,116.52

Finding the Fourth Proportional to 76,965.36, 106,113.33 and 63,116.52

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Solution

The fourth proportional to 76,965.36, 106,113.33 and 63,116.52 is: 87,019.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,965.36 : 106,113.33 = 63,116.52 : x
  2. Step 2: Convert to fraction form
    76,965.36/106,113.33 = 63,116.52/x
  3. Step 3: Cross multiply
    76,965.36x = 106,113.33 × 63,116.52
  4. Step 4: Simplify right side
    76,965.36x = 6,697,504,115.21
  5. Step 5: Solve for x
    x = 6,697,504,115.21/76,965.36
  6. Step 6: Final answer
    x = 87,019.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.