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Finding the Fourth Proportional to 60,409.77, 90,641.66 and 30,812.01

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Solution

The fourth proportional to 60,409.77, 90,641.66 and 30,812.01 is: 46,231.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,409.77 : 90,641.66 = 30,812.01 : x
  2. Step 2: Convert to fraction form
    60,409.77/90,641.66 = 30,812.01/x
  3. Step 3: Cross multiply
    60,409.77x = 90,641.66 × 30,812.01
  4. Step 4: Simplify right side
    60,409.77x = 2,792,851,580.28
  5. Step 5: Solve for x
    x = 2,792,851,580.28/60,409.77
  6. Step 6: Final answer
    x = 46,231.79

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Why These Related Problems?

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