Home / 76,174.51-105,121.13-42,182.26

Finding the Fourth Proportional to 76,174.51, 105,121.13 and 42,182.26

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Solution

The fourth proportional to 76,174.51, 105,121.13 and 42,182.26 is: 58,211.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,174.51 : 105,121.13 = 42,182.26 : x
  2. Step 2: Convert to fraction form
    76,174.51/105,121.13 = 42,182.26/x
  3. Step 3: Cross multiply
    76,174.51x = 105,121.13 × 42,182.26
  4. Step 4: Simplify right side
    76,174.51x = 4,434,247,370.94
  5. Step 5: Solve for x
    x = 4,434,247,370.94/76,174.51
  6. Step 6: Final answer
    x = 58,211.70

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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.