Home / 81,440.10-122,127.35-34,024.12

Finding the Fourth Proportional to 81,440.10, 122,127.35 and 34,024.12

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Solution

The fourth proportional to 81,440.10, 122,127.35 and 34,024.12 is: 51,022.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,440.10 : 122,127.35 = 34,024.12 : x
  2. Step 2: Convert to fraction form
    81,440.10/122,127.35 = 34,024.12/x
  3. Step 3: Cross multiply
    81,440.10x = 122,127.35 × 34,024.12
  4. Step 4: Simplify right side
    81,440.10x = 4,155,275,136.24
  5. Step 5: Solve for x
    x = 4,155,275,136.24/81,440.10
  6. Step 6: Final answer
    x = 51,022.47

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1.5x scale

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.