Home / 80,491.69-111,088.77-48,660.51

Finding the Fourth Proportional to 80,491.69, 111,088.77 and 48,660.51

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Solution

The fourth proportional to 80,491.69, 111,088.77 and 48,660.51 is: 67,157.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,491.69 : 111,088.77 = 48,660.51 : x
  2. Step 2: Convert to fraction form
    80,491.69/111,088.77 = 48,660.51/x
  3. Step 3: Cross multiply
    80,491.69x = 111,088.77 × 48,660.51
  4. Step 4: Simplify right side
    80,491.69x = 5,405,636,437.58
  5. Step 5: Solve for x
    x = 5,405,636,437.58/80,491.69
  6. Step 6: Final answer
    x = 67,157.69

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1.5x scale

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.