Home / 85,518.40-118,025.66-49,708.42

Finding the Fourth Proportional to 85,518.40, 118,025.66 and 49,708.42

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Solution

The fourth proportional to 85,518.40, 118,025.66 and 49,708.42 is: 68,603.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,518.40 : 118,025.66 = 49,708.42 : x
  2. Step 2: Convert to fraction form
    85,518.40/118,025.66 = 49,708.42/x
  3. Step 3: Cross multiply
    85,518.40x = 118,025.66 × 49,708.42
  4. Step 4: Simplify right side
    85,518.40x = 5,866,868,627.65
  5. Step 5: Solve for x
    x = 5,866,868,627.65/85,518.40
  6. Step 6: Final answer
    x = 68,603.58

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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.