Home / 84,871.47-127,306.39-51,600.72

Finding the Fourth Proportional to 84,871.47, 127,306.39 and 51,600.72

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Solution

The fourth proportional to 84,871.47, 127,306.39 and 51,600.72 is: 77,400.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,871.47 : 127,306.39 = 51,600.72 : x
  2. Step 2: Convert to fraction form
    84,871.47/127,306.39 = 51,600.72/x
  3. Step 3: Cross multiply
    84,871.47x = 127,306.39 × 51,600.72
  4. Step 4: Simplify right side
    84,871.47x = 6,569,101,384.60
  5. Step 5: Solve for x
    x = 6,569,101,384.60/84,871.47
  6. Step 6: Final answer
    x = 77,400.58

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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.