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Finding the Fourth Proportional to 84,010.60, 115,856.73 and 61,313.64

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Solution

The fourth proportional to 84,010.60, 115,856.73 and 61,313.64 is: 84,555.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,010.60 : 115,856.73 = 61,313.64 : x
  2. Step 2: Convert to fraction form
    84,010.60/115,856.73 = 61,313.64/x
  3. Step 3: Cross multiply
    84,010.60x = 115,856.73 × 61,313.64
  4. Step 4: Simplify right side
    84,010.60x = 7,103,597,255.51
  5. Step 5: Solve for x
    x = 7,103,597,255.51/84,010.60
  6. Step 6: Final answer
    x = 84,555.96

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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.