Home / 51,381.97-70,901.69-28,718.58

Finding the Fourth Proportional to 51,381.97, 70,901.69 and 28,718.58

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Solution

The fourth proportional to 51,381.97, 70,901.69 and 28,718.58 is: 39,628.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,381.97 : 70,901.69 = 28,718.58 : x
  2. Step 2: Convert to fraction form
    51,381.97/70,901.69 = 28,718.58/x
  3. Step 3: Cross multiply
    51,381.97x = 70,901.69 × 28,718.58
  4. Step 4: Simplify right side
    51,381.97x = 2,036,195,856.40
  5. Step 5: Solve for x
    x = 2,036,195,856.40/51,381.97
  6. Step 6: Final answer
    x = 39,628.61

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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.