Home / 76,554.33-105,648.49-42,566.28

Finding the Fourth Proportional to 76,554.33, 105,648.49 and 42,566.28

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Solution

The fourth proportional to 76,554.33, 105,648.49 and 42,566.28 is: 58,743.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,554.33 : 105,648.49 = 42,566.28 : x
  2. Step 2: Convert to fraction form
    76,554.33/105,648.49 = 42,566.28/x
  3. Step 3: Cross multiply
    76,554.33x = 105,648.49 × 42,566.28
  4. Step 4: Simplify right side
    76,554.33x = 4,497,063,206.92
  5. Step 5: Solve for x
    x = 4,497,063,206.92/76,554.33
  6. Step 6: Final answer
    x = 58,743.42

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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.