Home / 53,407.16-80,110.91-20,118.28

Finding the Fourth Proportional to 53,407.16, 80,110.91 and 20,118.28

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Solution

The fourth proportional to 53,407.16, 80,110.91 and 20,118.28 is: 30,177.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,407.16 : 80,110.91 = 20,118.28 : x
  2. Step 2: Convert to fraction form
    53,407.16/80,110.91 = 20,118.28/x
  3. Step 3: Cross multiply
    53,407.16x = 80,110.91 × 20,118.28
  4. Step 4: Simplify right side
    53,407.16x = 1,611,693,718.43
  5. Step 5: Solve for x
    x = 1,611,693,718.43/53,407.16
  6. Step 6: Final answer
    x = 30,177.48

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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.