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Finding the Fourth Proportional to 81,460.93, 112,416.64 and 45,163.49

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Solution

The fourth proportional to 81,460.93, 112,416.64 and 45,163.49 is: 62,325.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,460.93 : 112,416.64 = 45,163.49 : x
  2. Step 2: Convert to fraction form
    81,460.93/112,416.64 = 45,163.49/x
  3. Step 3: Cross multiply
    81,460.93x = 112,416.64 × 45,163.49
  4. Step 4: Simplify right side
    81,460.93x = 5,077,127,121.48
  5. Step 5: Solve for x
    x = 5,077,127,121.48/81,460.93
  6. Step 6: Final answer
    x = 62,325.92

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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.