Home / 89,641.04-123,702.86-49,355.46

Finding the Fourth Proportional to 89,641.04, 123,702.86 and 49,355.46

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Solution

The fourth proportional to 89,641.04, 123,702.86 and 49,355.46 is: 68,109.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,641.04 : 123,702.86 = 49,355.46 : x
  2. Step 2: Convert to fraction form
    89,641.04/123,702.86 = 49,355.46/x
  3. Step 3: Cross multiply
    89,641.04x = 123,702.86 × 49,355.46
  4. Step 4: Simplify right side
    89,641.04x = 6,105,411,311.84
  5. Step 5: Solve for x
    x = 6,105,411,311.84/89,641.04
  6. Step 6: Final answer
    x = 68,109.56

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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.