Home / 51,720.20-71,381.70-31,588.84

Finding the Fourth Proportional to 51,720.20, 71,381.70 and 31,588.84

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Solution

The fourth proportional to 51,720.20, 71,381.70 and 31,588.84 is: 43,597.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,720.20 : 71,381.70 = 31,588.84 : x
  2. Step 2: Convert to fraction form
    51,720.20/71,381.70 = 31,588.84/x
  3. Step 3: Cross multiply
    51,720.20x = 71,381.70 × 31,588.84
  4. Step 4: Simplify right side
    51,720.20x = 2,254,865,100.23
  5. Step 5: Solve for x
    x = 2,254,865,100.23/51,720.20
  6. Step 6: Final answer
    x = 43,597.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.