Home / 55,981.16-83,971.58-14,427.88

Finding the Fourth Proportional to 55,981.16, 83,971.58 and 14,427.88

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Solution

The fourth proportional to 55,981.16, 83,971.58 and 14,427.88 is: 21,641.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,981.16 : 83,971.58 = 14,427.88 : x
  2. Step 2: Convert to fraction form
    55,981.16/83,971.58 = 14,427.88/x
  3. Step 3: Cross multiply
    55,981.16x = 83,971.58 × 14,427.88
  4. Step 4: Simplify right side
    55,981.16x = 1,211,531,879.65
  5. Step 5: Solve for x
    x = 1,211,531,879.65/55,981.16
  6. Step 6: Final answer
    x = 21,641.78

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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.