Home / 74,643.42-103,012.26-56,213.54

Finding the Fourth Proportional to 74,643.42, 103,012.26 and 56,213.54

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Solution

The fourth proportional to 74,643.42, 103,012.26 and 56,213.54 is: 77,577.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,643.42 : 103,012.26 = 56,213.54 : x
  2. Step 2: Convert to fraction form
    74,643.42/103,012.26 = 56,213.54/x
  3. Step 3: Cross multiply
    74,643.42x = 103,012.26 × 56,213.54
  4. Step 4: Simplify right side
    74,643.42x = 5,790,683,798.00
  5. Step 5: Solve for x
    x = 5,790,683,798.00/74,643.42
  6. Step 6: Final answer
    x = 77,577.95

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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.