Home / 77,173.02-115,761.96-26,571.51

Finding the Fourth Proportional to 77,173.02, 115,761.96 and 26,571.51

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Solution

The fourth proportional to 77,173.02, 115,761.96 and 26,571.51 is: 39,858.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,173.02 : 115,761.96 = 26,571.51 : x
  2. Step 2: Convert to fraction form
    77,173.02/115,761.96 = 26,571.51/x
  3. Step 3: Cross multiply
    77,173.02x = 115,761.96 × 26,571.51
  4. Step 4: Simplify right side
    77,173.02x = 3,075,970,077.76
  5. Step 5: Solve for x
    x = 3,075,970,077.76/77,173.02
  6. Step 6: Final answer
    x = 39,858.10

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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.