Home / 45,718.56-68,526-19,406.88

Finding the Fourth Proportional to 45,718.56, 68,526 and 19,406.88

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Solution

The fourth proportional to 45,718.56, 68,526 and 19,406.88 is: 29,088.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,718.56 : 68,526 = 19,406.88 : x
  2. Step 2: Convert to fraction form
    45,718.56/68,526 = 19,406.88/x
  3. Step 3: Cross multiply
    45,718.56x = 68,526 × 19,406.88
  4. Step 4: Simplify right side
    45,718.56x = 1,329,875,858.88
  5. Step 5: Solve for x
    x = 1,329,875,858.88/45,718.56
  6. Step 6: Final answer
    x = 29,088.31

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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.