Home / 52,012.12-77,971.62-18,724.36

Finding the Fourth Proportional to 52,012.12, 77,971.62 and 18,724.36

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Solution

The fourth proportional to 52,012.12, 77,971.62 and 18,724.36 is: 28,069.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,012.12 : 77,971.62 = 18,724.36 : x
  2. Step 2: Convert to fraction form
    52,012.12/77,971.62 = 18,724.36/x
  3. Step 3: Cross multiply
    52,012.12x = 77,971.62 × 18,724.36
  4. Step 4: Simplify right side
    52,012.12x = 1,459,968,682.66
  5. Step 5: Solve for x
    x = 1,459,968,682.66/52,012.12
  6. Step 6: Final answer
    x = 28,069.78

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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.