Home / 76,213.52-105,169.58-42,219.72

Finding the Fourth Proportional to 76,213.52, 105,169.58 and 42,219.72

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Solution

The fourth proportional to 76,213.52, 105,169.58 and 42,219.72 is: 58,260.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,213.52 : 105,169.58 = 42,219.72 : x
  2. Step 2: Convert to fraction form
    76,213.52/105,169.58 = 42,219.72/x
  3. Step 3: Cross multiply
    76,213.52x = 105,169.58 × 42,219.72
  4. Step 4: Simplify right side
    76,213.52x = 4,440,230,220.12
  5. Step 5: Solve for x
    x = 4,440,230,220.12/76,213.52
  6. Step 6: Final answer
    x = 58,260.40

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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.