Home / 85,127.96-117,458.76-49,315.84

Finding the Fourth Proportional to 85,127.96, 117,458.76 and 49,315.84

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Solution

The fourth proportional to 85,127.96, 117,458.76 and 49,315.84 is: 68,045.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,127.96 : 117,458.76 = 49,315.84 : x
  2. Step 2: Convert to fraction form
    85,127.96/117,458.76 = 49,315.84/x
  3. Step 3: Cross multiply
    85,127.96x = 117,458.76 × 49,315.84
  4. Step 4: Simplify right side
    85,127.96x = 5,792,576,827.46
  5. Step 5: Solve for x
    x = 5,792,576,827.46/85,127.96
  6. Step 6: Final answer
    x = 68,045.53

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1.5x scale

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.