Home / 61,686.21-85,122.19-34,831.37

Finding the Fourth Proportional to 61,686.21, 85,122.19 and 34,831.37

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Solution

The fourth proportional to 61,686.21, 85,122.19 and 34,831.37 is: 48,064.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,686.21 : 85,122.19 = 34,831.37 : x
  2. Step 2: Convert to fraction form
    61,686.21/85,122.19 = 34,831.37/x
  3. Step 3: Cross multiply
    61,686.21x = 85,122.19 × 34,831.37
  4. Step 4: Simplify right side
    61,686.21x = 2,964,922,272.63
  5. Step 5: Solve for x
    x = 2,964,922,272.63/61,686.21
  6. Step 6: Final answer
    x = 48,064.59

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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.