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Finding the Fourth Proportional to 45,737.30, 68,603.90 and 19,072.31

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Solution

The fourth proportional to 45,737.30, 68,603.90 and 19,072.31 is: 28,607.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,737.30 : 68,603.90 = 19,072.31 : x
  2. Step 2: Convert to fraction form
    45,737.30/68,603.90 = 19,072.31/x
  3. Step 3: Cross multiply
    45,737.30x = 68,603.90 × 19,072.31
  4. Step 4: Simplify right side
    45,737.30x = 1,308,434,409.63
  5. Step 5: Solve for x
    x = 1,308,434,409.63/45,737.30
  6. Step 6: Final answer
    x = 28,607.60

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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.