Home / 51,390.32-70,940.51-31,253.67

Finding the Fourth Proportional to 51,390.32, 70,940.51 and 31,253.67

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Solution

The fourth proportional to 51,390.32, 70,940.51 and 31,253.67 is: 43,143.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,390.32 : 70,940.51 = 31,253.67 : x
  2. Step 2: Convert to fraction form
    51,390.32/70,940.51 = 31,253.67/x
  3. Step 3: Cross multiply
    51,390.32x = 70,940.51 × 31,253.67
  4. Step 4: Simplify right side
    51,390.32x = 2,217,151,449.62
  5. Step 5: Solve for x
    x = 2,217,151,449.62/51,390.32
  6. Step 6: Final answer
    x = 43,143.36

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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.