Home / 81,653.36-112,678.74-45,844.88

Finding the Fourth Proportional to 81,653.36, 112,678.74 and 45,844.88

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Solution

The fourth proportional to 81,653.36, 112,678.74 and 45,844.88 is: 63,264.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,653.36 : 112,678.74 = 45,844.88 : x
  2. Step 2: Convert to fraction form
    81,653.36/112,678.74 = 45,844.88/x
  3. Step 3: Cross multiply
    81,653.36x = 112,678.74 × 45,844.88
  4. Step 4: Simplify right side
    81,653.36x = 5,165,742,750.46
  5. Step 5: Solve for x
    x = 5,165,742,750.46/81,653.36
  6. Step 6: Final answer
    x = 63,264.30

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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.