Home / 74,624.20-112,022.70-45,075.40

Finding the Fourth Proportional to 74,624.20, 112,022.70 and 45,075.40

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Solution

The fourth proportional to 74,624.20, 112,022.70 and 45,075.40 is: 67,665.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,624.20 : 112,022.70 = 45,075.40 : x
  2. Step 2: Convert to fraction form
    74,624.20/112,022.70 = 45,075.40/x
  3. Step 3: Cross multiply
    74,624.20x = 112,022.70 × 45,075.40
  4. Step 4: Simplify right side
    74,624.20x = 5,049,468,011.58
  5. Step 5: Solve for x
    x = 5,049,468,011.58/74,624.20
  6. Step 6: Final answer
    x = 67,665.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.