Home / 52,661.07-78,991.59-21,085.35

Finding the Fourth Proportional to 52,661.07, 78,991.59 and 21,085.35

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Solution

The fourth proportional to 52,661.07, 78,991.59 and 21,085.35 is: 31,628.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,661.07 : 78,991.59 = 21,085.35 : x
  2. Step 2: Convert to fraction form
    52,661.07/78,991.59 = 21,085.35/x
  3. Step 3: Cross multiply
    52,661.07x = 78,991.59 × 21,085.35
  4. Step 4: Simplify right side
    52,661.07x = 1,665,565,322.21
  5. Step 5: Solve for x
    x = 1,665,565,322.21/52,661.07
  6. Step 6: Final answer
    x = 31,628.02

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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.