Home / 74,408.88-102,643.35-47,135.01

Finding the Fourth Proportional to 74,408.88, 102,643.35 and 47,135.01

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Solution

The fourth proportional to 74,408.88, 102,643.35 and 47,135.01 is: 65,020.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,408.88 : 102,643.35 = 47,135.01 : x
  2. Step 2: Convert to fraction form
    74,408.88/102,643.35 = 47,135.01/x
  3. Step 3: Cross multiply
    74,408.88x = 102,643.35 × 47,135.01
  4. Step 4: Simplify right side
    74,408.88x = 4,838,095,801.97
  5. Step 5: Solve for x
    x = 4,838,095,801.97/74,408.88
  6. Step 6: Final answer
    x = 65,020.41

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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.