Home / 71,701.50-98,950.89-39,439.12

Finding the Fourth Proportional to 71,701.50, 98,950.89 and 39,439.12

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Solution

The fourth proportional to 71,701.50, 98,950.89 and 39,439.12 is: 54,427.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,701.50 : 98,950.89 = 39,439.12 : x
  2. Step 2: Convert to fraction form
    71,701.50/98,950.89 = 39,439.12/x
  3. Step 3: Cross multiply
    71,701.50x = 98,950.89 × 39,439.12
  4. Step 4: Simplify right side
    71,701.50x = 3,902,536,219.96
  5. Step 5: Solve for x
    x = 3,902,536,219.96/71,701.50
  6. Step 6: Final answer
    x = 54,427.54

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1.5x scale

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.