Home / 53,042.72-79,555.44-17,981.60

Finding the Fourth Proportional to 53,042.72, 79,555.44 and 17,981.60

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Solution

The fourth proportional to 53,042.72, 79,555.44 and 17,981.60 is: 26,969.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,042.72 : 79,555.44 = 17,981.60 : x
  2. Step 2: Convert to fraction form
    53,042.72/79,555.44 = 17,981.60/x
  3. Step 3: Cross multiply
    53,042.72x = 79,555.44 × 17,981.60
  4. Step 4: Simplify right side
    53,042.72x = 1,430,534,099.90
  5. Step 5: Solve for x
    x = 1,430,534,099.90/53,042.72
  6. Step 6: Final answer
    x = 26,969.47

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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.