Home / 84,777.20-127,166.78-25,613.36

Finding the Fourth Proportional to 84,777.20, 127,166.78 and 25,613.36

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Solution

The fourth proportional to 84,777.20, 127,166.78 and 25,613.36 is: 38,420.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,777.20 : 127,166.78 = 25,613.36 : x
  2. Step 2: Convert to fraction form
    84,777.20/127,166.78 = 25,613.36/x
  3. Step 3: Cross multiply
    84,777.20x = 127,166.78 × 25,613.36
  4. Step 4: Simplify right side
    84,777.20x = 3,257,168,516.18
  5. Step 5: Solve for x
    x = 3,257,168,516.18/84,777.20
  6. Step 6: Final answer
    x = 38,420.34

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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.