Home / 85,146.48-117,482.58-48,831.12

Finding the Fourth Proportional to 85,146.48, 117,482.58 and 48,831.12

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Solution

The fourth proportional to 85,146.48, 117,482.58 and 48,831.12 is: 67,375.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,146.48 : 117,482.58 = 48,831.12 : x
  2. Step 2: Convert to fraction form
    85,146.48/117,482.58 = 48,831.12/x
  3. Step 3: Cross multiply
    85,146.48x = 117,482.58 × 48,831.12
  4. Step 4: Simplify right side
    85,146.48x = 5,736,805,961.89
  5. Step 5: Solve for x
    x = 5,736,805,961.89/85,146.48
  6. Step 6: Final answer
    x = 67,375.73

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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.