Home / 74,075.60-102,118.92-45,765.20

Finding the Fourth Proportional to 74,075.60, 102,118.92 and 45,765.20

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Solution

The fourth proportional to 74,075.60, 102,118.92 and 45,765.20 is: 63,090.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,075.60 : 102,118.92 = 45,765.20 : x
  2. Step 2: Convert to fraction form
    74,075.60/102,118.92 = 45,765.20/x
  3. Step 3: Cross multiply
    74,075.60x = 102,118.92 × 45,765.20
  4. Step 4: Simplify right side
    74,075.60x = 4,673,492,797.58
  5. Step 5: Solve for x
    x = 4,673,492,797.58/74,075.60
  6. Step 6: Final answer
    x = 63,090.85

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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.