Home / 51,380.40-70,894.08-31,247.76

Finding the Fourth Proportional to 51,380.40, 70,894.08 and 31,247.76

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Solution

The fourth proportional to 51,380.40, 70,894.08 and 31,247.76 is: 43,115.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,380.40 : 70,894.08 = 31,247.76 : x
  2. Step 2: Convert to fraction form
    51,380.40/70,894.08 = 31,247.76/x
  3. Step 3: Cross multiply
    51,380.40x = 70,894.08 × 31,247.76
  4. Step 4: Simplify right side
    51,380.40x = 2,215,281,197.26
  5. Step 5: Solve for x
    x = 2,215,281,197.26/51,380.40
  6. Step 6: Final answer
    x = 43,115.30

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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.