Home / 81,468.83-112,431.60-45,661.16

Finding the Fourth Proportional to 81,468.83, 112,431.60 and 45,661.16

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Solution

The fourth proportional to 81,468.83, 112,431.60 and 45,661.16 is: 63,014.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,468.83 : 112,431.60 = 45,661.16 : x
  2. Step 2: Convert to fraction form
    81,468.83/112,431.60 = 45,661.16/x
  3. Step 3: Cross multiply
    81,468.83x = 112,431.60 × 45,661.16
  4. Step 4: Simplify right side
    81,468.83x = 5,133,757,557.74
  5. Step 5: Solve for x
    x = 5,133,757,557.74/81,468.83
  6. Step 6: Final answer
    x = 63,014.99

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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.