Home / 90,219.54-124,504.98-58,443.72

Finding the Fourth Proportional to 90,219.54, 124,504.98 and 58,443.72

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Solution

The fourth proportional to 90,219.54, 124,504.98 and 58,443.72 is: 80,653.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,219.54 : 124,504.98 = 58,443.72 : x
  2. Step 2: Convert to fraction form
    90,219.54/124,504.98 = 58,443.72/x
  3. Step 3: Cross multiply
    90,219.54x = 124,504.98 × 58,443.72
  4. Step 4: Simplify right side
    90,219.54x = 7,276,534,189.73
  5. Step 5: Solve for x
    x = 7,276,534,189.73/90,219.54
  6. Step 6: Final answer
    x = 80,653.64

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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.