Home / 84,501.92-127,346.03-76,076.84

Finding the Fourth Proportional to 84,501.92, 127,346.03 and 76,076.84

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Solution

The fourth proportional to 84,501.92, 127,346.03 and 76,076.84 is: 114,649.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,501.92 : 127,346.03 = 76,076.84 : x
  2. Step 2: Convert to fraction form
    84,501.92/127,346.03 = 76,076.84/x
  3. Step 3: Cross multiply
    84,501.92x = 127,346.03 × 76,076.84
  4. Step 4: Simplify right side
    84,501.92x = 9,688,083,739.14
  5. Step 5: Solve for x
    x = 9,688,083,739.14/84,501.92
  6. Step 6: Final answer
    x = 114,649.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.