Home / 85,669.94-118,171.14-61,831.64

Finding the Fourth Proportional to 85,669.94, 118,171.14 and 61,831.64

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Solution

The fourth proportional to 85,669.94, 118,171.14 and 61,831.64 is: 85,289.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,669.94 : 118,171.14 = 61,831.64 : x
  2. Step 2: Convert to fraction form
    85,669.94/118,171.14 = 61,831.64/x
  3. Step 3: Cross multiply
    85,669.94x = 118,171.14 × 61,831.64
  4. Step 4: Simplify right side
    85,669.94x = 7,306,714,796.01
  5. Step 5: Solve for x
    x = 7,306,714,796.01/85,669.94
  6. Step 6: Final answer
    x = 85,289.14

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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.