Home / 77,212.08-115,800.54-37,210.68

Finding the Fourth Proportional to 77,212.08, 115,800.54 and 37,210.68

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Solution

The fourth proportional to 77,212.08, 115,800.54 and 37,210.68 is: 55,807.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,212.08 : 115,800.54 = 37,210.68 : x
  2. Step 2: Convert to fraction form
    77,212.08/115,800.54 = 37,210.68/x
  3. Step 3: Cross multiply
    77,212.08x = 115,800.54 × 37,210.68
  4. Step 4: Simplify right side
    77,212.08x = 4,309,016,837.77
  5. Step 5: Solve for x
    x = 4,309,016,837.77/77,212.08
  6. Step 6: Final answer
    x = 55,807.55

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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.