Home / 71,116.53-106,681.02-18,525.93

Finding the Fourth Proportional to 71,116.53, 106,681.02 and 18,525.93

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Solution

The fourth proportional to 71,116.53, 106,681.02 and 18,525.93 is: 27,790.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,116.53 : 106,681.02 = 18,525.93 : x
  2. Step 2: Convert to fraction form
    71,116.53/106,681.02 = 18,525.93/x
  3. Step 3: Cross multiply
    71,116.53x = 106,681.02 × 18,525.93
  4. Step 4: Simplify right side
    71,116.53x = 1,976,365,108.85
  5. Step 5: Solve for x
    x = 1,976,365,108.85/71,116.53
  6. Step 6: Final answer
    x = 27,790.52

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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.