Home / 40,918.50-61,321.75-30,915.02

Finding the Fourth Proportional to 40,918.50, 61,321.75 and 30,915.02

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Solution

The fourth proportional to 40,918.50, 61,321.75 and 30,915.02 is: 46,330.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,918.50 : 61,321.75 = 30,915.02 : x
  2. Step 2: Convert to fraction form
    40,918.50/61,321.75 = 30,915.02/x
  3. Step 3: Cross multiply
    40,918.50x = 61,321.75 × 30,915.02
  4. Step 4: Simplify right side
    40,918.50x = 1,895,763,127.69
  5. Step 5: Solve for x
    x = 1,895,763,127.69/40,918.50
  6. Step 6: Final answer
    x = 46,330.22

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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.