Home / 53,416.49-80,143.23-20,146.10

Finding the Fourth Proportional to 53,416.49, 80,143.23 and 20,146.10

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Solution

The fourth proportional to 53,416.49, 80,143.23 and 20,146.10 is: 30,226.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,416.49 : 80,143.23 = 20,146.10 : x
  2. Step 2: Convert to fraction form
    53,416.49/80,143.23 = 20,146.10/x
  3. Step 3: Cross multiply
    53,416.49x = 80,143.23 × 20,146.10
  4. Step 4: Simplify right side
    53,416.49x = 1,614,573,525.90
  5. Step 5: Solve for x
    x = 1,614,573,525.90/53,416.49
  6. Step 6: Final answer
    x = 30,226.13

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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.