Home / 85,557.78-118,066.77-47,831.94

Finding the Fourth Proportional to 85,557.78, 118,066.77 and 47,831.94

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Solution

The fourth proportional to 85,557.78, 118,066.77 and 47,831.94 is: 66,006.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,557.78 : 118,066.77 = 47,831.94 : x
  2. Step 2: Convert to fraction form
    85,557.78/118,066.77 = 47,831.94/x
  3. Step 3: Cross multiply
    85,557.78x = 118,066.77 × 47,831.94
  4. Step 4: Simplify right side
    85,557.78x = 5,647,362,658.63
  5. Step 5: Solve for x
    x = 5,647,362,658.63/85,557.78
  6. Step 6: Final answer
    x = 66,006.42

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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.