Home / 53,931.33-80,901.09-18,381.60

Finding the Fourth Proportional to 53,931.33, 80,901.09 and 18,381.60

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Solution

The fourth proportional to 53,931.33, 80,901.09 and 18,381.60 is: 27,573.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,931.33 : 80,901.09 = 18,381.60 : x
  2. Step 2: Convert to fraction form
    53,931.33/80,901.09 = 18,381.60/x
  3. Step 3: Cross multiply
    53,931.33x = 80,901.09 × 18,381.60
  4. Step 4: Simplify right side
    53,931.33x = 1,487,091,475.94
  5. Step 5: Solve for x
    x = 1,487,091,475.94/53,931.33
  6. Step 6: Final answer
    x = 27,573.80

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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.