Home / 77,001.84-115,482.36-30,255.12

Finding the Fourth Proportional to 77,001.84, 115,482.36 and 30,255.12

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Solution

The fourth proportional to 77,001.84, 115,482.36 and 30,255.12 is: 45,374.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,001.84 : 115,482.36 = 30,255.12 : x
  2. Step 2: Convert to fraction form
    77,001.84/115,482.36 = 30,255.12/x
  3. Step 3: Cross multiply
    77,001.84x = 115,482.36 × 30,255.12
  4. Step 4: Simplify right side
    77,001.84x = 3,493,932,659.68
  5. Step 5: Solve for x
    x = 3,493,932,659.68/77,001.84
  6. Step 6: Final answer
    x = 45,374.66

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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.