Home / 56,361.18-77,777.25-30,866.28

Finding the Fourth Proportional to 56,361.18, 77,777.25 and 30,866.28

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Solution

The fourth proportional to 56,361.18, 77,777.25 and 30,866.28 is: 42,594.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,361.18 : 77,777.25 = 30,866.28 : x
  2. Step 2: Convert to fraction form
    56,361.18/77,777.25 = 30,866.28/x
  3. Step 3: Cross multiply
    56,361.18x = 77,777.25 × 30,866.28
  4. Step 4: Simplify right side
    56,361.18x = 2,400,694,376.13
  5. Step 5: Solve for x
    x = 2,400,694,376.13/56,361.18
  6. Step 6: Final answer
    x = 42,594.82

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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.