Home / 90,047.85-124,269.44-49,763.31

Finding the Fourth Proportional to 90,047.85, 124,269.44 and 49,763.31

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Solution

The fourth proportional to 90,047.85, 124,269.44 and 49,763.31 is: 68,675.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,047.85 : 124,269.44 = 49,763.31 : x
  2. Step 2: Convert to fraction form
    90,047.85/124,269.44 = 49,763.31/x
  3. Step 3: Cross multiply
    90,047.85x = 124,269.44 × 49,763.31
  4. Step 4: Simplify right side
    90,047.85x = 6,184,058,417.43
  5. Step 5: Solve for x
    x = 6,184,058,417.43/90,047.85
  6. Step 6: Final answer
    x = 68,675.25

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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.