Home / 85,899.42-118,516.95-55,686.06

Finding the Fourth Proportional to 85,899.42, 118,516.95 and 55,686.06

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Solution

The fourth proportional to 85,899.42, 118,516.95 and 55,686.06 is: 76,831.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,899.42 : 118,516.95 = 55,686.06 : x
  2. Step 2: Convert to fraction form
    85,899.42/118,516.95 = 55,686.06/x
  3. Step 3: Cross multiply
    85,899.42x = 118,516.95 × 55,686.06
  4. Step 4: Simplify right side
    85,899.42x = 6,599,741,988.72
  5. Step 5: Solve for x
    x = 6,599,741,988.72/85,899.42
  6. Step 6: Final answer
    x = 76,831.04

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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.