Home / 105,454.44-145,523.79-57,704.67

Finding the Fourth Proportional to 105,454.44, 145,523.79 and 57,704.67

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Solution

The fourth proportional to 105,454.44, 145,523.79 and 57,704.67 is: 79,630.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,454.44 : 145,523.79 = 57,704.67 : x
  2. Step 2: Convert to fraction form
    105,454.44/145,523.79 = 57,704.67/x
  3. Step 3: Cross multiply
    105,454.44x = 145,523.79 × 57,704.67
  4. Step 4: Simplify right side
    105,454.44x = 8,397,402,279.10
  5. Step 5: Solve for x
    x = 8,397,402,279.10/105,454.44
  6. Step 6: Final answer
    x = 79,630.62

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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.