Home / 77,475.52-106,953.78-51,972.76

Finding the Fourth Proportional to 77,475.52, 106,953.78 and 51,972.76

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Solution

The fourth proportional to 77,475.52, 106,953.78 and 51,972.76 is: 71,747.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,475.52 : 106,953.78 = 51,972.76 : x
  2. Step 2: Convert to fraction form
    77,475.52/106,953.78 = 51,972.76/x
  3. Step 3: Cross multiply
    77,475.52x = 106,953.78 × 51,972.76
  4. Step 4: Simplify right side
    77,475.52x = 5,558,683,139.03
  5. Step 5: Solve for x
    x = 5,558,683,139.03/77,475.52
  6. Step 6: Final answer
    x = 71,747.61

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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.