Home / 71,679.01-98,918.02-39,848.60

Finding the Fourth Proportional to 71,679.01, 98,918.02 and 39,848.60

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Solution

The fourth proportional to 71,679.01, 98,918.02 and 39,848.60 is: 54,991.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,679.01 : 98,918.02 = 39,848.60 : x
  2. Step 2: Convert to fraction form
    71,679.01/98,918.02 = 39,848.60/x
  3. Step 3: Cross multiply
    71,679.01x = 98,918.02 × 39,848.60
  4. Step 4: Simplify right side
    71,679.01x = 3,941,744,611.77
  5. Step 5: Solve for x
    x = 3,941,744,611.77/71,679.01
  6. Step 6: Final answer
    x = 54,991.62

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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.