Home / 75,114.12-103,662.45-43,285.05

Finding the Fourth Proportional to 75,114.12, 103,662.45 and 43,285.05

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Solution

The fourth proportional to 75,114.12, 103,662.45 and 43,285.05 is: 59,736.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,114.12 : 103,662.45 = 43,285.05 : x
  2. Step 2: Convert to fraction form
    75,114.12/103,662.45 = 43,285.05/x
  3. Step 3: Cross multiply
    75,114.12x = 103,662.45 × 43,285.05
  4. Step 4: Simplify right side
    75,114.12x = 4,487,034,331.37
  5. Step 5: Solve for x
    x = 4,487,034,331.37/75,114.12
  6. Step 6: Final answer
    x = 59,736.23

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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.