Home / 66,021.27-91,109.76-35,807.04

Finding the Fourth Proportional to 66,021.27, 91,109.76 and 35,807.04

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Solution

The fourth proportional to 66,021.27, 91,109.76 and 35,807.04 is: 49,413.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,021.27 : 91,109.76 = 35,807.04 : x
  2. Step 2: Convert to fraction form
    66,021.27/91,109.76 = 35,807.04/x
  3. Step 3: Cross multiply
    66,021.27x = 91,109.76 × 35,807.04
  4. Step 4: Simplify right side
    66,021.27x = 3,262,370,820.71
  5. Step 5: Solve for x
    x = 3,262,370,820.71/66,021.27
  6. Step 6: Final answer
    x = 49,413.94

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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.