Home / 287,629.96-431,444.98-87,950.36

Finding the Fourth Proportional to 287,629.96, 431,444.98 and 87,950.36

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Solution

The fourth proportional to 287,629.96, 431,444.98 and 87,950.36 is: 131,925.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,629.96 : 431,444.98 = 87,950.36 : x
  2. Step 2: Convert to fraction form
    287,629.96/431,444.98 = 87,950.36/x
  3. Step 3: Cross multiply
    287,629.96x = 431,444.98 × 87,950.36
  4. Step 4: Simplify right side
    287,629.96x = 37,945,740,072.87
  5. Step 5: Solve for x
    x = 37,945,740,072.87/287,629.96
  6. Step 6: Final answer
    x = 131,925.55

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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.