Home / 76,162.06-105,106.92-42,170.54

Finding the Fourth Proportional to 76,162.06, 105,106.92 and 42,170.54

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Solution

The fourth proportional to 76,162.06, 105,106.92 and 42,170.54 is: 58,197.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,162.06 : 105,106.92 = 42,170.54 : x
  2. Step 2: Convert to fraction form
    76,162.06/105,106.92 = 42,170.54/x
  3. Step 3: Cross multiply
    76,162.06x = 105,106.92 × 42,170.54
  4. Step 4: Simplify right side
    76,162.06x = 4,432,415,574.14
  5. Step 5: Solve for x
    x = 4,432,415,574.14/76,162.06
  6. Step 6: Final answer
    x = 58,197.16

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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.