Home / 47,291.03-65,288.35-31,397.21

Finding the Fourth Proportional to 47,291.03, 65,288.35 and 31,397.21

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Solution

The fourth proportional to 47,291.03, 65,288.35 and 31,397.21 is: 43,345.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,291.03 : 65,288.35 = 31,397.21 : x
  2. Step 2: Convert to fraction form
    47,291.03/65,288.35 = 31,397.21/x
  3. Step 3: Cross multiply
    47,291.03x = 65,288.35 × 31,397.21
  4. Step 4: Simplify right side
    47,291.03x = 2,049,871,811.85
  5. Step 5: Solve for x
    x = 2,049,871,811.85/47,291.03
  6. Step 6: Final answer
    x = 43,345.89

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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.