Home / 61,437.19-92,171.88-19,315.57

Finding the Fourth Proportional to 61,437.19, 92,171.88 and 19,315.57

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Solution

The fourth proportional to 61,437.19, 92,171.88 and 19,315.57 is: 28,978.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,437.19 : 92,171.88 = 19,315.57 : x
  2. Step 2: Convert to fraction form
    61,437.19/92,171.88 = 19,315.57/x
  3. Step 3: Cross multiply
    61,437.19x = 92,171.88 × 19,315.57
  4. Step 4: Simplify right side
    61,437.19x = 1,780,352,400.17
  5. Step 5: Solve for x
    x = 1,780,352,400.17/61,437.19
  6. Step 6: Final answer
    x = 28,978.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.