Home / 76,168.64-105,111.44-42,176.39

Finding the Fourth Proportional to 76,168.64, 105,111.44 and 42,176.39

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Solution

The fourth proportional to 76,168.64, 105,111.44 and 42,176.39 is: 58,202.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,168.64 : 105,111.44 = 42,176.39 : x
  2. Step 2: Convert to fraction form
    76,168.64/105,111.44 = 42,176.39/x
  3. Step 3: Cross multiply
    76,168.64x = 105,111.44 × 42,176.39
  4. Step 4: Simplify right side
    76,168.64x = 4,433,221,270.19
  5. Step 5: Solve for x
    x = 4,433,221,270.19/76,168.64
  6. Step 6: Final answer
    x = 58,202.71

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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.