Home / 81,351.83-112,267.86-45,541.64

Finding the Fourth Proportional to 81,351.83, 112,267.86 and 45,541.64

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Solution

The fourth proportional to 81,351.83, 112,267.86 and 45,541.64 is: 62,848.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,351.83 : 112,267.86 = 45,541.64 : x
  2. Step 2: Convert to fraction form
    81,351.83/112,267.86 = 45,541.64/x
  3. Step 3: Cross multiply
    81,351.83x = 112,267.86 × 45,541.64
  4. Step 4: Simplify right side
    81,351.83x = 5,112,862,463.69
  5. Step 5: Solve for x
    x = 5,112,862,463.69/81,351.83
  6. Step 6: Final answer
    x = 62,848.77

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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.