Home / 47,189.94-70,785.59-12,129.63

Finding the Fourth Proportional to 47,189.94, 70,785.59 and 12,129.63

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Solution

The fourth proportional to 47,189.94, 70,785.59 and 12,129.63 is: 18,194.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,189.94 : 70,785.59 = 12,129.63 : x
  2. Step 2: Convert to fraction form
    47,189.94/70,785.59 = 12,129.63/x
  3. Step 3: Cross multiply
    47,189.94x = 70,785.59 × 12,129.63
  4. Step 4: Simplify right side
    47,189.94x = 858,602,955.38
  5. Step 5: Solve for x
    x = 858,602,955.38/47,189.94
  6. Step 6: Final answer
    x = 18,194.62

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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.