Home / 79,635.53-119,312.96-42,112.68

Finding the Fourth Proportional to 79,635.53, 119,312.96 and 42,112.68

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Solution

The fourth proportional to 79,635.53, 119,312.96 and 42,112.68 is: 63,094.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,635.53 : 119,312.96 = 42,112.68 : x
  2. Step 2: Convert to fraction form
    79,635.53/119,312.96 = 42,112.68/x
  3. Step 3: Cross multiply
    79,635.53x = 119,312.96 × 42,112.68
  4. Step 4: Simplify right side
    79,635.53x = 5,024,588,293.77
  5. Step 5: Solve for x
    x = 5,024,588,293.77/79,635.53
  6. Step 6: Final answer
    x = 63,094.81

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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.