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Finding the Fourth Proportional to 80,054.36, 110,417.82 and 61,158.68

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Solution

The fourth proportional to 80,054.36, 110,417.82 and 61,158.68 is: 84,355.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,054.36 : 110,417.82 = 61,158.68 : x
  2. Step 2: Convert to fraction form
    80,054.36/110,417.82 = 61,158.68/x
  3. Step 3: Cross multiply
    80,054.36x = 110,417.82 × 61,158.68
  4. Step 4: Simplify right side
    80,054.36x = 6,753,008,119.68
  5. Step 5: Solve for x
    x = 6,753,008,119.68/80,054.36
  6. Step 6: Final answer
    x = 84,355.28

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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.