Home / 74,036.64-102,172.98-40,502.64

Finding the Fourth Proportional to 74,036.64, 102,172.98 and 40,502.64

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Solution

The fourth proportional to 74,036.64, 102,172.98 and 40,502.64 is: 55,894.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,036.64 : 102,172.98 = 40,502.64 : x
  2. Step 2: Convert to fraction form
    74,036.64/102,172.98 = 40,502.64/x
  3. Step 3: Cross multiply
    74,036.64x = 102,172.98 × 40,502.64
  4. Step 4: Simplify right side
    74,036.64x = 4,138,275,426.67
  5. Step 5: Solve for x
    x = 4,138,275,426.67/74,036.64
  6. Step 6: Final answer
    x = 55,894.97

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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.