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Finding the Fourth Proportional to 53,405.49, 80,155.76 and 28,466.13

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Solution

The fourth proportional to 53,405.49, 80,155.76 and 28,466.13 is: 42,724.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,405.49 : 80,155.76 = 28,466.13 : x
  2. Step 2: Convert to fraction form
    53,405.49/80,155.76 = 28,466.13/x
  3. Step 3: Cross multiply
    53,405.49x = 80,155.76 × 28,466.13
  4. Step 4: Simplify right side
    53,405.49x = 2,281,724,602.78
  5. Step 5: Solve for x
    x = 2,281,724,602.78/53,405.49
  6. Step 6: Final answer
    x = 42,724.53

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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.