Home / 47,623.80-71,435.70-39,905.40

Finding the Fourth Proportional to 47,623.80, 71,435.70 and 39,905.40

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Solution

The fourth proportional to 47,623.80, 71,435.70 and 39,905.40 is: 59,858.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,623.80 : 71,435.70 = 39,905.40 : x
  2. Step 2: Convert to fraction form
    47,623.80/71,435.70 = 39,905.40/x
  3. Step 3: Cross multiply
    47,623.80x = 71,435.70 × 39,905.40
  4. Step 4: Simplify right side
    47,623.80x = 2,850,670,182.78
  5. Step 5: Solve for x
    x = 2,850,670,182.78/47,623.80
  6. Step 6: Final answer
    x = 59,858.10

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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.