Home / 48,121.90-72,168.27-14,390.16

Finding the Fourth Proportional to 48,121.90, 72,168.27 and 14,390.16

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Solution

The fourth proportional to 48,121.90, 72,168.27 and 14,390.16 is: 21,580.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,121.90 : 72,168.27 = 14,390.16 : x
  2. Step 2: Convert to fraction form
    48,121.90/72,168.27 = 14,390.16/x
  3. Step 3: Cross multiply
    48,121.90x = 72,168.27 × 14,390.16
  4. Step 4: Simplify right side
    48,121.90x = 1,038,512,627.63
  5. Step 5: Solve for x
    x = 1,038,512,627.63/48,121.90
  6. Step 6: Final answer
    x = 21,580.87

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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.