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Finding the Fourth Proportional to 74,957.40, 112,436.10 and 71,501.40

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Solution

The fourth proportional to 74,957.40, 112,436.10 and 71,501.40 is: 107,252.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,957.40 : 112,436.10 = 71,501.40 : x
  2. Step 2: Convert to fraction form
    74,957.40/112,436.10 = 71,501.40/x
  3. Step 3: Cross multiply
    74,957.40x = 112,436.10 × 71,501.40
  4. Step 4: Simplify right side
    74,957.40x = 8,039,338,560.54
  5. Step 5: Solve for x
    x = 8,039,338,560.54/74,957.40
  6. Step 6: Final answer
    x = 107,252.10

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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.