Home / 46,979.72-70,331.34-31,358.60

Finding the Fourth Proportional to 46,979.72, 70,331.34 and 31,358.60

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Solution

The fourth proportional to 46,979.72, 70,331.34 and 31,358.60 is: 46,945.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,979.72 : 70,331.34 = 31,358.60 : x
  2. Step 2: Convert to fraction form
    46,979.72/70,331.34 = 31,358.60/x
  3. Step 3: Cross multiply
    46,979.72x = 70,331.34 × 31,358.60
  4. Step 4: Simplify right side
    46,979.72x = 2,205,492,358.52
  5. Step 5: Solve for x
    x = 2,205,492,358.52/46,979.72
  6. Step 6: Final answer
    x = 46,945.63

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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.