Home / 81,636.26-112,663.44-45,828.72

Finding the Fourth Proportional to 81,636.26, 112,663.44 and 45,828.72

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Solution

The fourth proportional to 81,636.26, 112,663.44 and 45,828.72 is: 63,246.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,636.26 : 112,663.44 = 45,828.72 : x
  2. Step 2: Convert to fraction form
    81,636.26/112,663.44 = 45,828.72/x
  3. Step 3: Cross multiply
    81,636.26x = 112,663.44 × 45,828.72
  4. Step 4: Simplify right side
    81,636.26x = 5,163,221,246.00
  5. Step 5: Solve for x
    x = 5,163,221,246.00/81,636.26
  6. Step 6: Final answer
    x = 63,246.67

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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.