Home / 52,855.39-72,940.26-28,981.45

Finding the Fourth Proportional to 52,855.39, 72,940.26 and 28,981.45

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Solution

The fourth proportional to 52,855.39, 72,940.26 and 28,981.45 is: 39,994.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,855.39 : 72,940.26 = 28,981.45 : x
  2. Step 2: Convert to fraction form
    52,855.39/72,940.26 = 28,981.45/x
  3. Step 3: Cross multiply
    52,855.39x = 72,940.26 × 28,981.45
  4. Step 4: Simplify right side
    52,855.39x = 2,113,914,498.18
  5. Step 5: Solve for x
    x = 2,113,914,498.18/52,855.39
  6. Step 6: Final answer
    x = 39,994.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.