Home / 70,322.14-105,464.47-19,718.37

Finding the Fourth Proportional to 70,322.14, 105,464.47 and 19,718.37

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Solution

The fourth proportional to 70,322.14, 105,464.47 and 19,718.37 is: 29,572.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,322.14 : 105,464.47 = 19,718.37 : x
  2. Step 2: Convert to fraction form
    70,322.14/105,464.47 = 19,718.37/x
  3. Step 3: Cross multiply
    70,322.14x = 105,464.47 × 19,718.37
  4. Step 4: Simplify right side
    70,322.14x = 2,079,587,846.19
  5. Step 5: Solve for x
    x = 2,079,587,846.19/70,322.14
  6. Step 6: Final answer
    x = 29,572.31

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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.