Home / 86,075.18-118,791.21-50,276.72

Finding the Fourth Proportional to 86,075.18, 118,791.21 and 50,276.72

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Solution

The fourth proportional to 86,075.18, 118,791.21 and 50,276.72 is: 69,386.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,075.18 : 118,791.21 = 50,276.72 : x
  2. Step 2: Convert to fraction form
    86,075.18/118,791.21 = 50,276.72/x
  3. Step 3: Cross multiply
    86,075.18x = 118,791.21 × 50,276.72
  4. Step 4: Simplify right side
    86,075.18x = 5,972,431,809.68
  5. Step 5: Solve for x
    x = 5,972,431,809.68/86,075.18
  6. Step 6: Final answer
    x = 69,386.23

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1.5x scale

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.