Home / 71,962.65-99,308.26-40,131.58

Finding the Fourth Proportional to 71,962.65, 99,308.26 and 40,131.58

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Solution

The fourth proportional to 71,962.65, 99,308.26 and 40,131.58 is: 55,381.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,962.65 : 99,308.26 = 40,131.58 : x
  2. Step 2: Convert to fraction form
    71,962.65/99,308.26 = 40,131.58/x
  3. Step 3: Cross multiply
    71,962.65x = 99,308.26 × 40,131.58
  4. Step 4: Simplify right side
    71,962.65x = 3,985,397,280.52
  5. Step 5: Solve for x
    x = 3,985,397,280.52/71,962.65
  6. Step 6: Final answer
    x = 55,381.47

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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.