Home / 71,577.02-98,779.31-39,745.88

Finding the Fourth Proportional to 71,577.02, 98,779.31 and 39,745.88

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Solution

The fourth proportional to 71,577.02, 98,779.31 and 39,745.88 is: 54,850.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,577.02 : 98,779.31 = 39,745.88 : x
  2. Step 2: Convert to fraction form
    71,577.02/98,779.31 = 39,745.88/x
  3. Step 3: Cross multiply
    71,577.02x = 98,779.31 × 39,745.88
  4. Step 4: Simplify right side
    71,577.02x = 3,926,069,909.12
  5. Step 5: Solve for x
    x = 3,926,069,909.12/71,577.02
  6. Step 6: Final answer
    x = 54,850.99

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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.