Home / 55,915.05-77,164.05-30,422.86

Finding the Fourth Proportional to 55,915.05, 77,164.05 and 30,422.86

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Solution

The fourth proportional to 55,915.05, 77,164.05 and 30,422.86 is: 41,984.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,915.05 : 77,164.05 = 30,422.86 : x
  2. Step 2: Convert to fraction form
    55,915.05/77,164.05 = 30,422.86/x
  3. Step 3: Cross multiply
    55,915.05x = 77,164.05 × 30,422.86
  4. Step 4: Simplify right side
    55,915.05x = 2,347,551,090.18
  5. Step 5: Solve for x
    x = 2,347,551,090.18/55,915.05
  6. Step 6: Final answer
    x = 41,984.24

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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.