Home / 80,798.65-121,157.42-47,075.58

Finding the Fourth Proportional to 80,798.65, 121,157.42 and 47,075.58

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Solution

The fourth proportional to 80,798.65, 121,157.42 and 47,075.58 is: 70,589.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,798.65 : 121,157.42 = 47,075.58 : x
  2. Step 2: Convert to fraction form
    80,798.65/121,157.42 = 47,075.58/x
  3. Step 3: Cross multiply
    80,798.65x = 121,157.42 × 47,075.58
  4. Step 4: Simplify right side
    80,798.65x = 5,703,555,582.43
  5. Step 5: Solve for x
    x = 5,703,555,582.43/80,798.65
  6. Step 6: Final answer
    x = 70,589.74

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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.