Home / 75,075.80-103,617.36-43,263.18

Finding the Fourth Proportional to 75,075.80, 103,617.36 and 43,263.18

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Solution

The fourth proportional to 75,075.80, 103,617.36 and 43,263.18 is: 59,710.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,075.80 : 103,617.36 = 43,263.18 : x
  2. Step 2: Convert to fraction form
    75,075.80/103,617.36 = 43,263.18/x
  3. Step 3: Cross multiply
    75,075.80x = 103,617.36 × 43,263.18
  4. Step 4: Simplify right side
    75,075.80x = 4,482,816,496.80
  5. Step 5: Solve for x
    x = 4,482,816,496.80/75,075.80
  6. Step 6: Final answer
    x = 59,710.54

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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.