Home / 84,346.08-127,081.28-76,350.48

Finding the Fourth Proportional to 84,346.08, 127,081.28 and 76,350.48

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Solution

The fourth proportional to 84,346.08, 127,081.28 and 76,350.48 is: 115,034.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,346.08 : 127,081.28 = 76,350.48 : x
  2. Step 2: Convert to fraction form
    84,346.08/127,081.28 = 76,350.48/x
  3. Step 3: Cross multiply
    84,346.08x = 127,081.28 × 76,350.48
  4. Step 4: Simplify right side
    84,346.08x = 9,702,716,727.01
  5. Step 5: Solve for x
    x = 9,702,716,727.01/84,346.08
  6. Step 6: Final answer
    x = 115,034.59

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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.