Home / 115,690.40-173,378.72-52,431.52

Finding the Fourth Proportional to 115,690.40, 173,378.72 and 52,431.52

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Solution

The fourth proportional to 115,690.40, 173,378.72 and 52,431.52 is: 78,576.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,690.40 : 173,378.72 = 52,431.52 : x
  2. Step 2: Convert to fraction form
    115,690.40/173,378.72 = 52,431.52/x
  3. Step 3: Cross multiply
    115,690.40x = 173,378.72 × 52,431.52
  4. Step 4: Simplify right side
    115,690.40x = 9,090,509,825.25
  5. Step 5: Solve for x
    x = 9,090,509,825.25/115,690.40
  6. Step 6: Final answer
    x = 78,576.18

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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.