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Finding the Fourth Proportional to 81,374.98, 112,300.68 and 45,564.67

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Solution

The fourth proportional to 81,374.98, 112,300.68 and 45,564.67 is: 62,881.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,374.98 : 112,300.68 = 45,564.67 : x
  2. Step 2: Convert to fraction form
    81,374.98/112,300.68 = 45,564.67/x
  3. Step 3: Cross multiply
    81,374.98x = 112,300.68 × 45,564.67
  4. Step 4: Simplify right side
    81,374.98x = 5,116,943,424.98
  5. Step 5: Solve for x
    x = 5,116,943,424.98/81,374.98
  6. Step 6: Final answer
    x = 62,881.04

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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.