Home / 84,688.17-127,048.73-25,520.91

Finding the Fourth Proportional to 84,688.17, 127,048.73 and 25,520.91

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Solution

The fourth proportional to 84,688.17, 127,048.73 and 25,520.91 is: 38,286.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,688.17 : 127,048.73 = 25,520.91 : x
  2. Step 2: Convert to fraction form
    84,688.17/127,048.73 = 25,520.91/x
  3. Step 3: Cross multiply
    84,688.17x = 127,048.73 × 25,520.91
  4. Step 4: Simplify right side
    84,688.17x = 3,242,399,076.34
  5. Step 5: Solve for x
    x = 3,242,399,076.34/84,688.17
  6. Step 6: Final answer
    x = 38,286.33

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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.