Home / 51,378.84-70,901.73-28,717.20

Finding the Fourth Proportional to 51,378.84, 70,901.73 and 28,717.20

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Solution

The fourth proportional to 51,378.84, 70,901.73 and 28,717.20 is: 39,629.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,378.84 : 70,901.73 = 28,717.20 : x
  2. Step 2: Convert to fraction form
    51,378.84/70,901.73 = 28,717.20/x
  3. Step 3: Cross multiply
    51,378.84x = 70,901.73 × 28,717.20
  4. Step 4: Simplify right side
    51,378.84x = 2,036,099,160.76
  5. Step 5: Solve for x
    x = 2,036,099,160.76/51,378.84
  6. Step 6: Final answer
    x = 39,629.14

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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.