Home / 112,584.48-155,360.16-62,280

Finding the Fourth Proportional to 112,584.48, 155,360.16 and 62,280

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Solution

The fourth proportional to 112,584.48, 155,360.16 and 62,280 is: 85,942.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,584.48 : 155,360.16 = 62,280 : x
  2. Step 2: Convert to fraction form
    112,584.48/155,360.16 = 62,280/x
  3. Step 3: Cross multiply
    112,584.48x = 155,360.16 × 62,280
  4. Step 4: Simplify right side
    112,584.48x = 9,675,830,764.80
  5. Step 5: Solve for x
    x = 9,675,830,764.80/112,584.48
  6. Step 6: Final answer
    x = 85,942.85

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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.