Home / 81,001.44-111,776.76-44,703.21

Finding the Fourth Proportional to 81,001.44, 111,776.76 and 44,703.21

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Solution

The fourth proportional to 81,001.44, 111,776.76 and 44,703.21 is: 61,687.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,001.44 : 111,776.76 = 44,703.21 : x
  2. Step 2: Convert to fraction form
    81,001.44/111,776.76 = 44,703.21/x
  3. Step 3: Cross multiply
    81,001.44x = 111,776.76 × 44,703.21
  4. Step 4: Simplify right side
    81,001.44x = 4,996,779,975.40
  5. Step 5: Solve for x
    x = 4,996,779,975.40/81,001.44
  6. Step 6: Final answer
    x = 61,687.55

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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.