Home / 80,510.12-120,765.57-47,206.82

Finding the Fourth Proportional to 80,510.12, 120,765.57 and 47,206.82

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Solution

The fourth proportional to 80,510.12, 120,765.57 and 47,206.82 is: 70,810.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,510.12 : 120,765.57 = 47,206.82 : x
  2. Step 2: Convert to fraction form
    80,510.12/120,765.57 = 47,206.82/x
  3. Step 3: Cross multiply
    80,510.12x = 120,765.57 × 47,206.82
  4. Step 4: Simplify right side
    80,510.12x = 5,700,958,525.19
  5. Step 5: Solve for x
    x = 5,700,958,525.19/80,510.12
  6. Step 6: Final answer
    x = 70,810.46

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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.