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Finding the Fourth Proportional to 84,881.70, 127,323.63 and 43,357.86

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Solution

The fourth proportional to 84,881.70, 127,323.63 and 43,357.86 is: 65,037.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,881.70 : 127,323.63 = 43,357.86 : x
  2. Step 2: Convert to fraction form
    84,881.70/127,323.63 = 43,357.86/x
  3. Step 3: Cross multiply
    84,881.70x = 127,323.63 × 43,357.86
  4. Step 4: Simplify right side
    84,881.70x = 5,520,480,124.23
  5. Step 5: Solve for x
    x = 5,520,480,124.23/84,881.70
  6. Step 6: Final answer
    x = 65,037.34

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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.