Home / 92,912.19-128,215.89-52,629.69

Finding the Fourth Proportional to 92,912.19, 128,215.89 and 52,629.69

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Solution

The fourth proportional to 92,912.19, 128,215.89 and 52,629.69 is: 72,627.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,912.19 : 128,215.89 = 52,629.69 : x
  2. Step 2: Convert to fraction form
    92,912.19/128,215.89 = 52,629.69/x
  3. Step 3: Cross multiply
    92,912.19x = 128,215.89 × 52,629.69
  4. Step 4: Simplify right side
    92,912.19x = 6,747,962,543.77
  5. Step 5: Solve for x
    x = 6,747,962,543.77/92,912.19
  6. Step 6: Final answer
    x = 72,627.31

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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.