Home / 66,573.48-99,859.92-19,826.40

Finding the Fourth Proportional to 66,573.48, 99,859.92 and 19,826.40

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Solution

The fourth proportional to 66,573.48, 99,859.92 and 19,826.40 is: 29,739.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,573.48 : 99,859.92 = 19,826.40 : x
  2. Step 2: Convert to fraction form
    66,573.48/99,859.92 = 19,826.40/x
  3. Step 3: Cross multiply
    66,573.48x = 99,859.92 × 19,826.40
  4. Step 4: Simplify right side
    66,573.48x = 1,979,862,717.89
  5. Step 5: Solve for x
    x = 1,979,862,717.89/66,573.48
  6. Step 6: Final answer
    x = 29,739.51

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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.