Home / 52,003.73-78,015.69-19,980.45

Finding the Fourth Proportional to 52,003.73, 78,015.69 and 19,980.45

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Solution

The fourth proportional to 52,003.73, 78,015.69 and 19,980.45 is: 29,974.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,003.73 : 78,015.69 = 19,980.45 : x
  2. Step 2: Convert to fraction form
    52,003.73/78,015.69 = 19,980.45/x
  3. Step 3: Cross multiply
    52,003.73x = 78,015.69 × 19,980.45
  4. Step 4: Simplify right side
    52,003.73x = 1,558,788,593.26
  5. Step 5: Solve for x
    x = 1,558,788,593.26/52,003.73
  6. Step 6: Final answer
    x = 29,974.55

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1.5x scale

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.