Home / 81,870.48-122,805.72-22,706.16

Finding the Fourth Proportional to 81,870.48, 122,805.72 and 22,706.16

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Solution

The fourth proportional to 81,870.48, 122,805.72 and 22,706.16 is: 34,059.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,870.48 : 122,805.72 = 22,706.16 : x
  2. Step 2: Convert to fraction form
    81,870.48/122,805.72 = 22,706.16/x
  3. Step 3: Cross multiply
    81,870.48x = 122,805.72 × 22,706.16
  4. Step 4: Simplify right side
    81,870.48x = 2,788,446,327.24
  5. Step 5: Solve for x
    x = 2,788,446,327.24/81,870.48
  6. Step 6: Final answer
    x = 34,059.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.