Home / 47,315.16-65,274.30-31,161.60

Finding the Fourth Proportional to 47,315.16, 65,274.30 and 31,161.60

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Solution

The fourth proportional to 47,315.16, 65,274.30 and 31,161.60 is: 42,989.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,315.16 : 65,274.30 = 31,161.60 : x
  2. Step 2: Convert to fraction form
    47,315.16/65,274.30 = 31,161.60/x
  3. Step 3: Cross multiply
    47,315.16x = 65,274.30 × 31,161.60
  4. Step 4: Simplify right side
    47,315.16x = 2,034,051,626.88
  5. Step 5: Solve for x
    x = 2,034,051,626.88/47,315.16
  6. Step 6: Final answer
    x = 42,989.43

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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.