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Finding the Fourth Proportional to 124,032, 186,048 and 36,480

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Solution

The fourth proportional to 124,032, 186,048 and 36,480 is: 54,720

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,032 : 186,048 = 36,480 : x
  2. Step 2: Convert to fraction form
    124,032/186,048 = 36,480/x
  3. Step 3: Cross multiply
    124,032x = 186,048 × 36,480
  4. Step 4: Simplify right side
    124,032x = 6,787,031,040
  5. Step 5: Solve for x
    x = 6,787,031,040/124,032
  6. Step 6: Final answer
    x = 54,720

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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.