Home / 51,719.64-71,380.80-31,588.08

Finding the Fourth Proportional to 51,719.64, 71,380.80 and 31,588.08

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Solution

The fourth proportional to 51,719.64, 71,380.80 and 31,588.08 is: 43,596.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,719.64 : 71,380.80 = 31,588.08 : x
  2. Step 2: Convert to fraction form
    51,719.64/71,380.80 = 31,588.08/x
  3. Step 3: Cross multiply
    51,719.64x = 71,380.80 × 31,588.08
  4. Step 4: Simplify right side
    51,719.64x = 2,254,782,420.86
  5. Step 5: Solve for x
    x = 2,254,782,420.86/51,719.64
  6. Step 6: Final answer
    x = 43,596.25

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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.