Home / 81,136.89-111,966.72-44,341.65

Finding the Fourth Proportional to 81,136.89, 111,966.72 and 44,341.65

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Solution

The fourth proportional to 81,136.89, 111,966.72 and 44,341.65 is: 61,190.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,136.89 : 111,966.72 = 44,341.65 : x
  2. Step 2: Convert to fraction form
    81,136.89/111,966.72 = 44,341.65/x
  3. Step 3: Cross multiply
    81,136.89x = 111,966.72 × 44,341.65
  4. Step 4: Simplify right side
    81,136.89x = 4,964,788,943.61
  5. Step 5: Solve for x
    x = 4,964,788,943.61/81,136.89
  6. Step 6: Final answer
    x = 61,190.28

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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.