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Finding the Fourth Proportional to 46,860, 70,299.72 and 19,158

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Solution

The fourth proportional to 46,860, 70,299.72 and 19,158 is: 28,740.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,860 : 70,299.72 = 19,158 : x
  2. Step 2: Convert to fraction form
    46,860/70,299.72 = 19,158/x
  3. Step 3: Cross multiply
    46,860x = 70,299.72 × 19,158
  4. Step 4: Simplify right side
    46,860x = 1,346,802,035.76
  5. Step 5: Solve for x
    x = 1,346,802,035.76/46,860
  6. Step 6: Final answer
    x = 28,740.97

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.