Home / 53,618.90-80,412.68-20,314.94

Finding the Fourth Proportional to 53,618.90, 80,412.68 and 20,314.94

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Solution

The fourth proportional to 53,618.90, 80,412.68 and 20,314.94 is: 30,466.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,618.90 : 80,412.68 = 20,314.94 : x
  2. Step 2: Convert to fraction form
    53,618.90/80,412.68 = 20,314.94/x
  3. Step 3: Cross multiply
    53,618.90x = 80,412.68 × 20,314.94
  4. Step 4: Simplify right side
    53,618.90x = 1,633,578,418.16
  5. Step 5: Solve for x
    x = 1,633,578,418.16/53,618.90
  6. Step 6: Final answer
    x = 30,466.47

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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.