Home / 85,127.40-117,457.83-49,315.29

Finding the Fourth Proportional to 85,127.40, 117,457.83 and 49,315.29

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Solution

The fourth proportional to 85,127.40, 117,457.83 and 49,315.29 is: 68,044.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,127.40 : 117,457.83 = 49,315.29 : x
  2. Step 2: Convert to fraction form
    85,127.40/117,457.83 = 49,315.29/x
  3. Step 3: Cross multiply
    85,127.40x = 117,457.83 × 49,315.29
  4. Step 4: Simplify right side
    85,127.40x = 5,792,466,949.22
  5. Step 5: Solve for x
    x = 5,792,466,949.22/85,127.40
  6. Step 6: Final answer
    x = 68,044.68

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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.