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Finding the Fourth Proportional to 53,362.98, 80,085.78 and 20,113.29

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Solution

The fourth proportional to 53,362.98, 80,085.78 and 20,113.29 is: 30,185.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,362.98 : 80,085.78 = 20,113.29 : x
  2. Step 2: Convert to fraction form
    53,362.98/80,085.78 = 20,113.29/x
  3. Step 3: Cross multiply
    53,362.98x = 80,085.78 × 20,113.29
  4. Step 4: Simplify right side
    53,362.98x = 1,610,788,518.02
  5. Step 5: Solve for x
    x = 1,610,788,518.02/53,362.98
  6. Step 6: Final answer
    x = 30,185.51

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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.