Home / 47,739.42-65,859.21-31,808.34

Finding the Fourth Proportional to 47,739.42, 65,859.21 and 31,808.34

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Solution

The fourth proportional to 47,739.42, 65,859.21 and 31,808.34 is: 43,881.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,739.42 : 65,859.21 = 31,808.34 : x
  2. Step 2: Convert to fraction form
    47,739.42/65,859.21 = 31,808.34/x
  3. Step 3: Cross multiply
    47,739.42x = 65,859.21 × 31,808.34
  4. Step 4: Simplify right side
    47,739.42x = 2,094,872,143.81
  5. Step 5: Solve for x
    x = 2,094,872,143.81/47,739.42
  6. Step 6: Final answer
    x = 43,881.39

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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.