Home / 75,075.48-103,485.06-59,134.68

Finding the Fourth Proportional to 75,075.48, 103,485.06 and 59,134.68

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Solution

The fourth proportional to 75,075.48, 103,485.06 and 59,134.68 is: 81,512.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,075.48 : 103,485.06 = 59,134.68 : x
  2. Step 2: Convert to fraction form
    75,075.48/103,485.06 = 59,134.68/x
  3. Step 3: Cross multiply
    75,075.48x = 103,485.06 × 59,134.68
  4. Step 4: Simplify right side
    75,075.48x = 6,119,555,907.88
  5. Step 5: Solve for x
    x = 6,119,555,907.88/75,075.48
  6. Step 6: Final answer
    x = 81,512.05

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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.