Home / 76,206.23-105,163.22-42,214.61

Finding the Fourth Proportional to 76,206.23, 105,163.22 and 42,214.61

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Solution

The fourth proportional to 76,206.23, 105,163.22 and 42,214.61 is: 58,255.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,206.23 : 105,163.22 = 42,214.61 : x
  2. Step 2: Convert to fraction form
    76,206.23/105,163.22 = 42,214.61/x
  3. Step 3: Cross multiply
    76,206.23x = 105,163.22 × 42,214.61
  4. Step 4: Simplify right side
    76,206.23x = 4,439,424,055.27
  5. Step 5: Solve for x
    x = 4,439,424,055.27/76,206.23
  6. Step 6: Final answer
    x = 58,255.40

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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.