Home / 79,645.38-119,385.44-39,637.86

Finding the Fourth Proportional to 79,645.38, 119,385.44 and 39,637.86

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Solution

The fourth proportional to 79,645.38, 119,385.44 and 39,637.86 is: 59,415.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,645.38 : 119,385.44 = 39,637.86 : x
  2. Step 2: Convert to fraction form
    79,645.38/119,385.44 = 39,637.86/x
  3. Step 3: Cross multiply
    79,645.38x = 119,385.44 × 39,637.86
  4. Step 4: Simplify right side
    79,645.38x = 4,732,183,356.76
  5. Step 5: Solve for x
    x = 4,732,183,356.76/79,645.38
  6. Step 6: Final answer
    x = 59,415.67

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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.