Home / 89,774.42-123,889.08-49,487.31

Finding the Fourth Proportional to 89,774.42, 123,889.08 and 49,487.31

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Solution

The fourth proportional to 89,774.42, 123,889.08 and 49,487.31 is: 68,292.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,774.42 : 123,889.08 = 49,487.31 : x
  2. Step 2: Convert to fraction form
    89,774.42/123,889.08 = 49,487.31/x
  3. Step 3: Cross multiply
    89,774.42x = 123,889.08 × 49,487.31
  4. Step 4: Simplify right side
    89,774.42x = 6,130,937,307.57
  5. Step 5: Solve for x
    x = 6,130,937,307.57/89,774.42
  6. Step 6: Final answer
    x = 68,292.70

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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.