Home / 71,601.90-98,810.74-39,769.98

Finding the Fourth Proportional to 71,601.90, 98,810.74 and 39,769.98

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Solution

The fourth proportional to 71,601.90, 98,810.74 and 39,769.98 is: 54,882.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,601.90 : 98,810.74 = 39,769.98 : x
  2. Step 2: Convert to fraction form
    71,601.90/98,810.74 = 39,769.98/x
  3. Step 3: Cross multiply
    71,601.90x = 98,810.74 × 39,769.98
  4. Step 4: Simplify right side
    71,601.90x = 3,929,701,153.59
  5. Step 5: Solve for x
    x = 3,929,701,153.59/71,601.90
  6. Step 6: Final answer
    x = 54,882.64

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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.