Home / 90,058.08-124,279.44-49,774.56

Finding the Fourth Proportional to 90,058.08, 124,279.44 and 49,774.56

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Solution

The fourth proportional to 90,058.08, 124,279.44 and 49,774.56 is: 68,688.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,058.08 : 124,279.44 = 49,774.56 : x
  2. Step 2: Convert to fraction form
    90,058.08/124,279.44 = 49,774.56/x
  3. Step 3: Cross multiply
    90,058.08x = 124,279.44 × 49,774.56
  4. Step 4: Simplify right side
    90,058.08x = 6,185,954,443.05
  5. Step 5: Solve for x
    x = 6,185,954,443.05/90,058.08
  6. Step 6: Final answer
    x = 68,688.50

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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.