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Finding the Fourth Proportional to 84,764.63, 127,143.87 and 25,598.79

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Solution

The fourth proportional to 84,764.63, 127,143.87 and 25,598.79 is: 38,397.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,764.63 : 127,143.87 = 25,598.79 : x
  2. Step 2: Convert to fraction form
    84,764.63/127,143.87 = 25,598.79/x
  3. Step 3: Cross multiply
    84,764.63x = 127,143.87 × 25,598.79
  4. Step 4: Simplify right side
    84,764.63x = 3,254,729,227.92
  5. Step 5: Solve for x
    x = 3,254,729,227.92/84,764.63
  6. Step 6: Final answer
    x = 38,397.26

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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.