Home / 84,619.86-126,896.99-45,155.45

Finding the Fourth Proportional to 84,619.86, 126,896.99 and 45,155.45

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Solution

The fourth proportional to 84,619.86, 126,896.99 and 45,155.45 is: 67,715.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,619.86 : 126,896.99 = 45,155.45 : x
  2. Step 2: Convert to fraction form
    84,619.86/126,896.99 = 45,155.45/x
  3. Step 3: Cross multiply
    84,619.86x = 126,896.99 × 45,155.45
  4. Step 4: Simplify right side
    84,619.86x = 5,730,089,826.83
  5. Step 5: Solve for x
    x = 5,730,089,826.83/84,619.86
  6. Step 6: Final answer
    x = 67,715.66

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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.