Home / 61,116.26-91,680.33-18,985.01

Finding the Fourth Proportional to 61,116.26, 91,680.33 and 18,985.01

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Solution

The fourth proportional to 61,116.26, 91,680.33 and 18,985.01 is: 28,479.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,116.26 : 91,680.33 = 18,985.01 : x
  2. Step 2: Convert to fraction form
    61,116.26/91,680.33 = 18,985.01/x
  3. Step 3: Cross multiply
    61,116.26x = 91,680.33 × 18,985.01
  4. Step 4: Simplify right side
    61,116.26x = 1,740,551,487.85
  5. Step 5: Solve for x
    x = 1,740,551,487.85/61,116.26
  6. Step 6: Final answer
    x = 28,479.35

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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.