Home / 79,497.40-109,716.78-51,285.12

Finding the Fourth Proportional to 79,497.40, 109,716.78 and 51,285.12

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Solution

The fourth proportional to 79,497.40, 109,716.78 and 51,285.12 is: 70,780.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,497.40 : 109,716.78 = 51,285.12 : x
  2. Step 2: Convert to fraction form
    79,497.40/109,716.78 = 51,285.12/x
  3. Step 3: Cross multiply
    79,497.40x = 109,716.78 × 51,285.12
  4. Step 4: Simplify right side
    79,497.40x = 5,626,838,228.31
  5. Step 5: Solve for x
    x = 5,626,838,228.31/79,497.40
  6. Step 6: Final answer
    x = 70,780.15

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1.5x scale

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.