Home / 81,308.16-112,215.96-45,511.92

Finding the Fourth Proportional to 81,308.16, 112,215.96 and 45,511.92

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Solution

The fourth proportional to 81,308.16, 112,215.96 and 45,511.92 is: 62,812.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,308.16 : 112,215.96 = 45,511.92 : x
  2. Step 2: Convert to fraction form
    81,308.16/112,215.96 = 45,511.92/x
  3. Step 3: Cross multiply
    81,308.16x = 112,215.96 × 45,511.92
  4. Step 4: Simplify right side
    81,308.16x = 5,107,163,794.24
  5. Step 5: Solve for x
    x = 5,107,163,794.24/81,308.16
  6. Step 6: Final answer
    x = 62,812.44

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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.