Home / 75,870.28-104,704.26-42,336.28

Finding the Fourth Proportional to 75,870.28, 104,704.26 and 42,336.28

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Solution

The fourth proportional to 75,870.28, 104,704.26 and 42,336.28 is: 58,425.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,870.28 : 104,704.26 = 42,336.28 : x
  2. Step 2: Convert to fraction form
    75,870.28/104,704.26 = 42,336.28/x
  3. Step 3: Cross multiply
    75,870.28x = 104,704.26 × 42,336.28
  4. Step 4: Simplify right side
    75,870.28x = 4,432,788,868.55
  5. Step 5: Solve for x
    x = 4,432,788,868.55/75,870.28
  6. Step 6: Final answer
    x = 58,425.89

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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.