Home / 53,930.71-80,932.52-18,870.67

Finding the Fourth Proportional to 53,930.71, 80,932.52 and 18,870.67

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Solution

The fourth proportional to 53,930.71, 80,932.52 and 18,870.67 is: 28,318.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,930.71 : 80,932.52 = 18,870.67 : x
  2. Step 2: Convert to fraction form
    53,930.71/80,932.52 = 18,870.67/x
  3. Step 3: Cross multiply
    53,930.71x = 80,932.52 × 18,870.67
  4. Step 4: Simplify right side
    53,930.71x = 1,527,250,877.19
  5. Step 5: Solve for x
    x = 1,527,250,877.19/53,930.71
  6. Step 6: Final answer
    x = 28,318.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.