Home / 61,315.90-84,646.56-40,127.54

Finding the Fourth Proportional to 61,315.90, 84,646.56 and 40,127.54

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Solution

The fourth proportional to 61,315.90, 84,646.56 and 40,127.54 is: 55,396.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,315.90 : 84,646.56 = 40,127.54 : x
  2. Step 2: Convert to fraction form
    61,315.90/84,646.56 = 40,127.54/x
  3. Step 3: Cross multiply
    61,315.90x = 84,646.56 × 40,127.54
  4. Step 4: Simplify right side
    61,315.90x = 3,396,658,222.26
  5. Step 5: Solve for x
    x = 3,396,658,222.26/61,315.90
  6. Step 6: Final answer
    x = 55,396.04

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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.