Home / 83,629.95-115,408.84-45,390.26

Finding the Fourth Proportional to 83,629.95, 115,408.84 and 45,390.26

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Solution

The fourth proportional to 83,629.95, 115,408.84 and 45,390.26 is: 62,638.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,629.95 : 115,408.84 = 45,390.26 : x
  2. Step 2: Convert to fraction form
    83,629.95/115,408.84 = 45,390.26/x
  3. Step 3: Cross multiply
    83,629.95x = 115,408.84 × 45,390.26
  4. Step 4: Simplify right side
    83,629.95x = 5,238,437,253.90
  5. Step 5: Solve for x
    x = 5,238,437,253.90/83,629.95
  6. Step 6: Final answer
    x = 62,638.29

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1.5x scale

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.