Home / 81,269.25-112,156.54-45,461.67

Finding the Fourth Proportional to 81,269.25, 112,156.54 and 45,461.67

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Solution

The fourth proportional to 81,269.25, 112,156.54 and 45,461.67 is: 62,739.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,269.25 : 112,156.54 = 45,461.67 : x
  2. Step 2: Convert to fraction form
    81,269.25/112,156.54 = 45,461.67/x
  3. Step 3: Cross multiply
    81,269.25x = 112,156.54 × 45,461.67
  4. Step 4: Simplify right side
    81,269.25x = 5,098,823,496.17
  5. Step 5: Solve for x
    x = 5,098,823,496.17/81,269.25
  6. Step 6: Final answer
    x = 62,739.89

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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.