Home / 84,126.72-116,090.64-48,313.92

Finding the Fourth Proportional to 84,126.72, 116,090.64 and 48,313.92

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Solution

The fourth proportional to 84,126.72, 116,090.64 and 48,313.92 is: 66,670.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,126.72 : 116,090.64 = 48,313.92 : x
  2. Step 2: Convert to fraction form
    84,126.72/116,090.64 = 48,313.92/x
  3. Step 3: Cross multiply
    84,126.72x = 116,090.64 × 48,313.92
  4. Step 4: Simplify right side
    84,126.72x = 5,608,793,893.71
  5. Step 5: Solve for x
    x = 5,608,793,893.71/84,126.72
  6. Step 6: Final answer
    x = 66,670.78

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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.