Home / 53,896.32-80,812.08-20,618.84

Finding the Fourth Proportional to 53,896.32, 80,812.08 and 20,618.84

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Solution

The fourth proportional to 53,896.32, 80,812.08 and 20,618.84 is: 30,915.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,896.32 : 80,812.08 = 20,618.84 : x
  2. Step 2: Convert to fraction form
    53,896.32/80,812.08 = 20,618.84/x
  3. Step 3: Cross multiply
    53,896.32x = 80,812.08 × 20,618.84
  4. Step 4: Simplify right side
    53,896.32x = 1,666,251,347.59
  5. Step 5: Solve for x
    x = 1,666,251,347.59/53,896.32
  6. Step 6: Final answer
    x = 30,915.86

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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.