Home / 61,075.12-84,282.20-34,218.48

Finding the Fourth Proportional to 61,075.12, 84,282.20 and 34,218.48

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Solution

The fourth proportional to 61,075.12, 84,282.20 and 34,218.48 is: 47,220.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,075.12 : 84,282.20 = 34,218.48 : x
  2. Step 2: Convert to fraction form
    61,075.12/84,282.20 = 34,218.48/x
  3. Step 3: Cross multiply
    61,075.12x = 84,282.20 × 34,218.48
  4. Step 4: Simplify right side
    61,075.12x = 2,884,008,775.06
  5. Step 5: Solve for x
    x = 2,884,008,775.06/61,075.12
  6. Step 6: Final answer
    x = 47,220.68

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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.