Home / 66,918.06-92,340.23-38,632.86

Finding the Fourth Proportional to 66,918.06, 92,340.23 and 38,632.86

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Solution

The fourth proportional to 66,918.06, 92,340.23 and 38,632.86 is: 53,309.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,918.06 : 92,340.23 = 38,632.86 : x
  2. Step 2: Convert to fraction form
    66,918.06/92,340.23 = 38,632.86/x
  3. Step 3: Cross multiply
    66,918.06x = 92,340.23 × 38,632.86
  4. Step 4: Simplify right side
    66,918.06x = 3,567,366,984.79
  5. Step 5: Solve for x
    x = 3,567,366,984.79/66,918.06
  6. Step 6: Final answer
    x = 53,309.48

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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.