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Finding the Fourth Proportional to 76,153.50, 105,077.25 and 49,292.28

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Solution

The fourth proportional to 76,153.50, 105,077.25 and 49,292.28 is: 68,013.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,153.50 : 105,077.25 = 49,292.28 : x
  2. Step 2: Convert to fraction form
    76,153.50/105,077.25 = 49,292.28/x
  3. Step 3: Cross multiply
    76,153.50x = 105,077.25 × 49,292.28
  4. Step 4: Simplify right side
    76,153.50x = 5,179,497,228.63
  5. Step 5: Solve for x
    x = 5,179,497,228.63/76,153.50
  6. Step 6: Final answer
    x = 68,013.91

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1.5x scale

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.