Home / 76,715.89-114,999.45-39,293.62

Finding the Fourth Proportional to 76,715.89, 114,999.45 and 39,293.62

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Solution

The fourth proportional to 76,715.89, 114,999.45 and 39,293.62 is: 58,902.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,715.89 : 114,999.45 = 39,293.62 : x
  2. Step 2: Convert to fraction form
    76,715.89/114,999.45 = 39,293.62/x
  3. Step 3: Cross multiply
    76,715.89x = 114,999.45 × 39,293.62
  4. Step 4: Simplify right side
    76,715.89x = 4,518,744,688.51
  5. Step 5: Solve for x
    x = 4,518,744,688.51/76,715.89
  6. Step 6: Final answer
    x = 58,902.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.