Home / 48,138.90-72,148.10-23,172.26

Finding the Fourth Proportional to 48,138.90, 72,148.10 and 23,172.26

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Solution

The fourth proportional to 48,138.90, 72,148.10 and 23,172.26 is: 34,729.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,138.90 : 72,148.10 = 23,172.26 : x
  2. Step 2: Convert to fraction form
    48,138.90/72,148.10 = 23,172.26/x
  3. Step 3: Cross multiply
    48,138.90x = 72,148.10 × 23,172.26
  4. Step 4: Simplify right side
    48,138.90x = 1,671,834,531.71
  5. Step 5: Solve for x
    x = 1,671,834,531.71/48,138.90
  6. Step 6: Final answer
    x = 34,729.39

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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.