Home / 287,624.02-431,436.04-87,944.42

Finding the Fourth Proportional to 287,624.02, 431,436.04 and 87,944.42

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Solution

The fourth proportional to 287,624.02, 431,436.04 and 87,944.42 is: 131,916.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,624.02 : 431,436.04 = 87,944.42 : x
  2. Step 2: Convert to fraction form
    287,624.02/431,436.04 = 87,944.42/x
  3. Step 3: Cross multiply
    287,624.02x = 431,436.04 × 87,944.42
  4. Step 4: Simplify right side
    287,624.02x = 37,942,392,304.90
  5. Step 5: Solve for x
    x = 37,942,392,304.90/287,624.02
  6. Step 6: Final answer
    x = 131,916.63

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Similar ratio
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1.5x scale

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.