Home / 287,631.02-431,446.53-87,951.41

Finding the Fourth Proportional to 287,631.02, 431,446.53 and 87,951.41

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Solution

The fourth proportional to 287,631.02, 431,446.53 and 87,951.41 is: 131,927.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,631.02 : 431,446.53 = 87,951.41 : x
  2. Step 2: Convert to fraction form
    287,631.02/431,446.53 = 87,951.41/x
  3. Step 3: Cross multiply
    287,631.02x = 431,446.53 × 87,951.41
  4. Step 4: Simplify right side
    287,631.02x = 37,946,330,653.11
  5. Step 5: Solve for x
    x = 37,946,330,653.11/287,631.02
  6. Step 6: Final answer
    x = 131,927.12

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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.