Home / 48,172.98-72,252.18-13,115.40

Finding the Fourth Proportional to 48,172.98, 72,252.18 and 13,115.40

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Solution

The fourth proportional to 48,172.98, 72,252.18 and 13,115.40 is: 19,671.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,172.98 : 72,252.18 = 13,115.40 : x
  2. Step 2: Convert to fraction form
    48,172.98/72,252.18 = 13,115.40/x
  3. Step 3: Cross multiply
    48,172.98x = 72,252.18 × 13,115.40
  4. Step 4: Simplify right side
    48,172.98x = 947,616,241.57
  5. Step 5: Solve for x
    x = 947,616,241.57/48,172.98
  6. Step 6: Final answer
    x = 19,671.12

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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.