Home / 61,688.78-92,519.32-28,376.84

Finding the Fourth Proportional to 61,688.78, 92,519.32 and 28,376.84

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Solution

The fourth proportional to 61,688.78, 92,519.32 and 28,376.84 is: 42,558.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,688.78 : 92,519.32 = 28,376.84 : x
  2. Step 2: Convert to fraction form
    61,688.78/92,519.32 = 28,376.84/x
  3. Step 3: Cross multiply
    61,688.78x = 92,519.32 × 28,376.84
  4. Step 4: Simplify right side
    61,688.78x = 2,625,405,940.55
  5. Step 5: Solve for x
    x = 2,625,405,940.55/61,688.78
  6. Step 6: Final answer
    x = 42,558.89

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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.