Home / 66,693.18-92,029.57-39,831.96

Finding the Fourth Proportional to 66,693.18, 92,029.57 and 39,831.96

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Solution

The fourth proportional to 66,693.18, 92,029.57 and 39,831.96 is: 54,963.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,693.18 : 92,029.57 = 39,831.96 : x
  2. Step 2: Convert to fraction form
    66,693.18/92,029.57 = 39,831.96/x
  3. Step 3: Cross multiply
    66,693.18x = 92,029.57 × 39,831.96
  4. Step 4: Simplify right side
    66,693.18x = 3,665,718,151.06
  5. Step 5: Solve for x
    x = 3,665,718,151.06/66,693.18
  6. Step 6: Final answer
    x = 54,963.91

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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.