Home / 43,138.98-64,708.47-25,642.98

Finding the Fourth Proportional to 43,138.98, 64,708.47 and 25,642.98

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Solution

The fourth proportional to 43,138.98, 64,708.47 and 25,642.98 is: 38,464.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,138.98 : 64,708.47 = 25,642.98 : x
  2. Step 2: Convert to fraction form
    43,138.98/64,708.47 = 25,642.98/x
  3. Step 3: Cross multiply
    43,138.98x = 64,708.47 × 25,642.98
  4. Step 4: Simplify right side
    43,138.98x = 1,659,318,002.04
  5. Step 5: Solve for x
    x = 1,659,318,002.04/43,138.98
  6. Step 6: Final answer
    x = 38,464.47

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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.