Home / 51,065.28-70,476.60-30,922.20

Finding the Fourth Proportional to 51,065.28, 70,476.60 and 30,922.20

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Solution

The fourth proportional to 51,065.28, 70,476.60 and 30,922.20 is: 42,676.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,065.28 : 70,476.60 = 30,922.20 : x
  2. Step 2: Convert to fraction form
    51,065.28/70,476.60 = 30,922.20/x
  3. Step 3: Cross multiply
    51,065.28x = 70,476.60 × 30,922.20
  4. Step 4: Simplify right side
    51,065.28x = 2,179,291,520.52
  5. Step 5: Solve for x
    x = 2,179,291,520.52/51,065.28
  6. Step 6: Final answer
    x = 42,676.58

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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.