Home / 76,146.48-105,082.38-41,221.13

Finding the Fourth Proportional to 76,146.48, 105,082.38 and 41,221.13

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Solution

The fourth proportional to 76,146.48, 105,082.38 and 41,221.13 is: 56,885.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,146.48 : 105,082.38 = 41,221.13 : x
  2. Step 2: Convert to fraction form
    76,146.48/105,082.38 = 41,221.13/x
  3. Step 3: Cross multiply
    76,146.48x = 105,082.38 × 41,221.13
  4. Step 4: Simplify right side
    76,146.48x = 4,331,613,921.28
  5. Step 5: Solve for x
    x = 4,331,613,921.28/76,146.48
  6. Step 6: Final answer
    x = 56,885.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.