Home / 53,518.81-80,279.18-20,254.54

Finding the Fourth Proportional to 53,518.81, 80,279.18 and 20,254.54

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Solution

The fourth proportional to 53,518.81, 80,279.18 and 20,254.54 is: 30,382.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,518.81 : 80,279.18 = 20,254.54 : x
  2. Step 2: Convert to fraction form
    53,518.81/80,279.18 = 20,254.54/x
  3. Step 3: Cross multiply
    53,518.81x = 80,279.18 × 20,254.54
  4. Step 4: Simplify right side
    53,518.81x = 1,626,017,862.48
  5. Step 5: Solve for x
    x = 1,626,017,862.48/53,518.81
  6. Step 6: Final answer
    x = 30,382.18

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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.