Home / 78,208.40-117,319.52-22,049.01

Finding the Fourth Proportional to 78,208.40, 117,319.52 and 22,049.01

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Solution

The fourth proportional to 78,208.40, 117,319.52 and 22,049.01 is: 33,075.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,208.40 : 117,319.52 = 22,049.01 : x
  2. Step 2: Convert to fraction form
    78,208.40/117,319.52 = 22,049.01/x
  3. Step 3: Cross multiply
    78,208.40x = 117,319.52 × 22,049.01
  4. Step 4: Simplify right side
    78,208.40x = 2,586,779,324.80
  5. Step 5: Solve for x
    x = 2,586,779,324.80/78,208.40
  6. Step 6: Final answer
    x = 33,075.47

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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.