Home / 74,698.02-103,080.65-40,705.81

Finding the Fourth Proportional to 74,698.02, 103,080.65 and 40,705.81

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Solution

The fourth proportional to 74,698.02, 103,080.65 and 40,705.81 is: 56,172.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,698.02 : 103,080.65 = 40,705.81 : x
  2. Step 2: Convert to fraction form
    74,698.02/103,080.65 = 40,705.81/x
  3. Step 3: Cross multiply
    74,698.02x = 103,080.65 × 40,705.81
  4. Step 4: Simplify right side
    74,698.02x = 4,195,981,150.05
  5. Step 5: Solve for x
    x = 4,195,981,150.05/74,698.02
  6. Step 6: Final answer
    x = 56,172.59

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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.