Home / 85,155.30-117,509.13-49,339.08

Finding the Fourth Proportional to 85,155.30, 117,509.13 and 49,339.08

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Solution

The fourth proportional to 85,155.30, 117,509.13 and 49,339.08 is: 68,084.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,155.30 : 117,509.13 = 49,339.08 : x
  2. Step 2: Convert to fraction form
    85,155.30/117,509.13 = 49,339.08/x
  3. Step 3: Cross multiply
    85,155.30x = 117,509.13 × 49,339.08
  4. Step 4: Simplify right side
    85,155.30x = 5,797,792,365.80
  5. Step 5: Solve for x
    x = 5,797,792,365.80/85,155.30
  6. Step 6: Final answer
    x = 68,084.93

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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.