Home / 76,558.62-105,638.10-42,566.16

Finding the Fourth Proportional to 76,558.62, 105,638.10 and 42,566.16

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Solution

The fourth proportional to 76,558.62, 105,638.10 and 42,566.16 is: 58,734.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,558.62 : 105,638.10 = 42,566.16 : x
  2. Step 2: Convert to fraction form
    76,558.62/105,638.10 = 42,566.16/x
  3. Step 3: Cross multiply
    76,558.62x = 105,638.10 × 42,566.16
  4. Step 4: Simplify right side
    76,558.62x = 4,496,608,266.70
  5. Step 5: Solve for x
    x = 4,496,608,266.70/76,558.62
  6. Step 6: Final answer
    x = 58,734.19

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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.