Home / 74,296.32-102,528.64-40,762.88

Finding the Fourth Proportional to 74,296.32, 102,528.64 and 40,762.88

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Solution

The fourth proportional to 74,296.32, 102,528.64 and 40,762.88 is: 56,252.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,296.32 : 102,528.64 = 40,762.88 : x
  2. Step 2: Convert to fraction form
    74,296.32/102,528.64 = 40,762.88/x
  3. Step 3: Cross multiply
    74,296.32x = 102,528.64 × 40,762.88
  4. Step 4: Simplify right side
    74,296.32x = 4,179,362,648.88
  5. Step 5: Solve for x
    x = 4,179,362,648.88/74,296.32
  6. Step 6: Final answer
    x = 56,252.62

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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.