Home / 76,554.11-105,648.19-42,566.09

Finding the Fourth Proportional to 76,554.11, 105,648.19 and 42,566.09

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Solution

The fourth proportional to 76,554.11, 105,648.19 and 42,566.09 is: 58,743.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,554.11 : 105,648.19 = 42,566.09 : x
  2. Step 2: Convert to fraction form
    76,554.11/105,648.19 = 42,566.09/x
  3. Step 3: Cross multiply
    76,554.11x = 105,648.19 × 42,566.09
  4. Step 4: Simplify right side
    76,554.11x = 4,497,030,363.88
  5. Step 5: Solve for x
    x = 4,497,030,363.88/76,554.11
  6. Step 6: Final answer
    x = 58,743.16

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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.