Home / 71,536.90-98,729.67-39,716.05

Finding the Fourth Proportional to 71,536.90, 98,729.67 and 39,716.05

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Solution

The fourth proportional to 71,536.90, 98,729.67 and 39,716.05 is: 54,813.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,536.90 : 98,729.67 = 39,716.05 : x
  2. Step 2: Convert to fraction form
    71,536.90/98,729.67 = 39,716.05/x
  3. Step 3: Cross multiply
    71,536.90x = 98,729.67 × 39,716.05
  4. Step 4: Simplify right side
    71,536.90x = 3,921,152,510.20
  5. Step 5: Solve for x
    x = 3,921,152,510.20/71,536.90
  6. Step 6: Final answer
    x = 54,813.01

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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.