Home / 70,426.32-105,643.11-17,836.26

Finding the Fourth Proportional to 70,426.32, 105,643.11 and 17,836.26

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Solution

The fourth proportional to 70,426.32, 105,643.11 and 17,836.26 is: 26,755.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,426.32 : 105,643.11 = 17,836.26 : x
  2. Step 2: Convert to fraction form
    70,426.32/105,643.11 = 17,836.26/x
  3. Step 3: Cross multiply
    70,426.32x = 105,643.11 × 17,836.26
  4. Step 4: Simplify right side
    70,426.32x = 1,884,277,977.17
  5. Step 5: Solve for x
    x = 1,884,277,977.17/70,426.32
  6. Step 6: Final answer
    x = 26,755.31

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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.