Home / 50,075.80-69,129.66-31,223.32

Finding the Fourth Proportional to 50,075.80, 69,129.66 and 31,223.32

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Solution

The fourth proportional to 50,075.80, 69,129.66 and 31,223.32 is: 43,103.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,075.80 : 69,129.66 = 31,223.32 : x
  2. Step 2: Convert to fraction form
    50,075.80/69,129.66 = 31,223.32/x
  3. Step 3: Cross multiply
    50,075.80x = 69,129.66 × 31,223.32
  4. Step 4: Simplify right side
    50,075.80x = 2,158,457,495.67
  5. Step 5: Solve for x
    x = 2,158,457,495.67/50,075.80
  6. Step 6: Final answer
    x = 43,103.80

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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.