Home / 58,668.12-87,955.74-21,222.36

Finding the Fourth Proportional to 58,668.12, 87,955.74 and 21,222.36

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Solution

The fourth proportional to 58,668.12, 87,955.74 and 21,222.36 is: 31,816.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,668.12 : 87,955.74 = 21,222.36 : x
  2. Step 2: Convert to fraction form
    58,668.12/87,955.74 = 21,222.36/x
  3. Step 3: Cross multiply
    58,668.12x = 87,955.74 × 21,222.36
  4. Step 4: Simplify right side
    58,668.12x = 1,866,628,378.35
  5. Step 5: Solve for x
    x = 1,866,628,378.35/58,668.12
  6. Step 6: Final answer
    x = 31,816.74

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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.