Home / 56,380.32-84,581.40-18,940.98

Finding the Fourth Proportional to 56,380.32, 84,581.40 and 18,940.98

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Solution

The fourth proportional to 56,380.32, 84,581.40 and 18,940.98 is: 28,415.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,380.32 : 84,581.40 = 18,940.98 : x
  2. Step 2: Convert to fraction form
    56,380.32/84,581.40 = 18,940.98/x
  3. Step 3: Cross multiply
    56,380.32x = 84,581.40 × 18,940.98
  4. Step 4: Simplify right side
    56,380.32x = 1,602,054,605.77
  5. Step 5: Solve for x
    x = 1,602,054,605.77/56,380.32
  6. Step 6: Final answer
    x = 28,415.14

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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.