Home / 76,426.30-114,639.45-57,763.90

Finding the Fourth Proportional to 76,426.30, 114,639.45 and 57,763.90

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Solution

The fourth proportional to 76,426.30, 114,639.45 and 57,763.90 is: 86,645.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,426.30 : 114,639.45 = 57,763.90 : x
  2. Step 2: Convert to fraction form
    76,426.30/114,639.45 = 57,763.90/x
  3. Step 3: Cross multiply
    76,426.30x = 114,639.45 × 57,763.90
  4. Step 4: Simplify right side
    76,426.30x = 6,622,021,725.86
  5. Step 5: Solve for x
    x = 6,622,021,725.86/76,426.30
  6. Step 6: Final answer
    x = 86,645.85

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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.