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Finding the Fourth Proportional to 84,913.22, 127,362 and 28,746.91

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Solution

The fourth proportional to 84,913.22, 127,362 and 28,746.91 is: 43,117.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,913.22 : 127,362 = 28,746.91 : x
  2. Step 2: Convert to fraction form
    84,913.22/127,362 = 28,746.91/x
  3. Step 3: Cross multiply
    84,913.22x = 127,362 × 28,746.91
  4. Step 4: Simplify right side
    84,913.22x = 3,661,263,951.42
  5. Step 5: Solve for x
    x = 3,661,263,951.42/84,913.22
  6. Step 6: Final answer
    x = 43,117.71

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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.