Home / 76,828.76-115,350.69-39,415.22

Finding the Fourth Proportional to 76,828.76, 115,350.69 and 39,415.22

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Solution

The fourth proportional to 76,828.76, 115,350.69 and 39,415.22 is: 59,178.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,828.76 : 115,350.69 = 39,415.22 : x
  2. Step 2: Convert to fraction form
    76,828.76/115,350.69 = 39,415.22/x
  3. Step 3: Cross multiply
    76,828.76x = 115,350.69 × 39,415.22
  4. Step 4: Simplify right side
    76,828.76x = 4,546,572,823.50
  5. Step 5: Solve for x
    x = 4,546,572,823.50/76,828.76
  6. Step 6: Final answer
    x = 59,178.01

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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.