Home / 85,557.47-118,069.58-47,831.72

Finding the Fourth Proportional to 85,557.47, 118,069.58 and 47,831.72

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Solution

The fourth proportional to 85,557.47, 118,069.58 and 47,831.72 is: 66,007.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,557.47 : 118,069.58 = 47,831.72 : x
  2. Step 2: Convert to fraction form
    85,557.47/118,069.58 = 47,831.72/x
  3. Step 3: Cross multiply
    85,557.47x = 118,069.58 × 47,831.72
  4. Step 4: Simplify right side
    85,557.47x = 5,647,471,091.08
  5. Step 5: Solve for x
    x = 5,647,471,091.08/85,557.47
  6. Step 6: Final answer
    x = 66,007.93

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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.