Home / 287,629.02-431,443.53-87,949.41

Finding the Fourth Proportional to 287,629.02, 431,443.53 and 87,949.41

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Solution

The fourth proportional to 287,629.02, 431,443.53 and 87,949.41 is: 131,924.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,629.02 : 431,443.53 = 87,949.41 : x
  2. Step 2: Convert to fraction form
    287,629.02/431,443.53 = 87,949.41/x
  3. Step 3: Cross multiply
    287,629.02x = 431,443.53 × 87,949.41
  4. Step 4: Simplify right side
    287,629.02x = 37,945,203,911.82
  5. Step 5: Solve for x
    x = 37,945,203,911.82/287,629.02
  6. Step 6: Final answer
    x = 131,924.12

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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.