Home / 76,891.02-115,281.16-47,247.60

Finding the Fourth Proportional to 76,891.02, 115,281.16 and 47,247.60

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Solution

The fourth proportional to 76,891.02, 115,281.16 and 47,247.60 is: 70,837.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,891.02 : 115,281.16 = 47,247.60 : x
  2. Step 2: Convert to fraction form
    76,891.02/115,281.16 = 47,247.60/x
  3. Step 3: Cross multiply
    76,891.02x = 115,281.16 × 47,247.60
  4. Step 4: Simplify right side
    76,891.02x = 5,446,757,898.98
  5. Step 5: Solve for x
    x = 5,446,757,898.98/76,891.02
  6. Step 6: Final answer
    x = 70,837.38

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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.