Home / 53,419.72-80,131.62-15,980.32

Finding the Fourth Proportional to 53,419.72, 80,131.62 and 15,980.32

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Solution

The fourth proportional to 53,419.72, 80,131.62 and 15,980.32 is: 23,971.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,419.72 : 80,131.62 = 15,980.32 : x
  2. Step 2: Convert to fraction form
    53,419.72/80,131.62 = 15,980.32/x
  3. Step 3: Cross multiply
    53,419.72x = 80,131.62 × 15,980.32
  4. Step 4: Simplify right side
    53,419.72x = 1,280,528,929.72
  5. Step 5: Solve for x
    x = 1,280,528,929.72/53,419.72
  6. Step 6: Final answer
    x = 23,971.09

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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.