Home / 74,840.09-112,162.93-30,415.14

Finding the Fourth Proportional to 74,840.09, 112,162.93 and 30,415.14

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Solution

The fourth proportional to 74,840.09, 112,162.93 and 30,415.14 is: 45,583.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,840.09 : 112,162.93 = 30,415.14 : x
  2. Step 2: Convert to fraction form
    74,840.09/112,162.93 = 30,415.14/x
  3. Step 3: Cross multiply
    74,840.09x = 112,162.93 × 30,415.14
  4. Step 4: Simplify right side
    74,840.09x = 3,411,451,142.72
  5. Step 5: Solve for x
    x = 3,411,451,142.72/74,840.09
  6. Step 6: Final answer
    x = 45,583.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.