Home / 77,209.15-115,833.70-45,215.24

Finding the Fourth Proportional to 77,209.15, 115,833.70 and 45,215.24

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Solution

The fourth proportional to 77,209.15, 115,833.70 and 45,215.24 is: 67,834.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,209.15 : 115,833.70 = 45,215.24 : x
  2. Step 2: Convert to fraction form
    77,209.15/115,833.70 = 45,215.24/x
  3. Step 3: Cross multiply
    77,209.15x = 115,833.70 × 45,215.24
  4. Step 4: Simplify right side
    77,209.15x = 5,237,448,545.59
  5. Step 5: Solve for x
    x = 5,237,448,545.59/77,209.15
  6. Step 6: Final answer
    x = 67,834.56

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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.