Home / 74,687.14-103,070.72-40,698.32

Finding the Fourth Proportional to 74,687.14, 103,070.72 and 40,698.32

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Solution

The fourth proportional to 74,687.14, 103,070.72 and 40,698.32 is: 56,165.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,687.14 : 103,070.72 = 40,698.32 : x
  2. Step 2: Convert to fraction form
    74,687.14/103,070.72 = 40,698.32/x
  3. Step 3: Cross multiply
    74,687.14x = 103,070.72 × 40,698.32
  4. Step 4: Simplify right side
    74,687.14x = 4,194,805,145.19
  5. Step 5: Solve for x
    x = 4,194,805,145.19/74,687.14
  6. Step 6: Final answer
    x = 56,165.03

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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.