Home / 51,859.09-71,566.46-30,638.31

Finding the Fourth Proportional to 51,859.09, 71,566.46 and 30,638.31

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Solution

The fourth proportional to 51,859.09, 71,566.46 and 30,638.31 is: 42,281.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,859.09 : 71,566.46 = 30,638.31 : x
  2. Step 2: Convert to fraction form
    51,859.09/71,566.46 = 30,638.31/x
  3. Step 3: Cross multiply
    51,859.09x = 71,566.46 × 30,638.31
  4. Step 4: Simplify right side
    51,859.09x = 2,192,674,876.06
  5. Step 5: Solve for x
    x = 2,192,674,876.06/51,859.09
  6. Step 6: Final answer
    x = 42,281.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.