Home / 92,818.27-128,078.58-51,976.70

Finding the Fourth Proportional to 92,818.27, 128,078.58 and 51,976.70

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Solution

The fourth proportional to 92,818.27, 128,078.58 and 51,976.70 is: 71,721.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,818.27 : 128,078.58 = 51,976.70 : x
  2. Step 2: Convert to fraction form
    92,818.27/128,078.58 = 51,976.70/x
  3. Step 3: Cross multiply
    92,818.27x = 128,078.58 × 51,976.70
  4. Step 4: Simplify right side
    92,818.27x = 6,657,101,929.09
  5. Step 5: Solve for x
    x = 6,657,101,929.09/92,818.27
  6. Step 6: Final answer
    x = 71,721.89

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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.