Home / 80,765.40-111,455.43-44,465.70

Finding the Fourth Proportional to 80,765.40, 111,455.43 and 44,465.70

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Solution

The fourth proportional to 80,765.40, 111,455.43 and 44,465.70 is: 61,362.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,765.40 : 111,455.43 = 44,465.70 : x
  2. Step 2: Convert to fraction form
    80,765.40/111,455.43 = 44,465.70/x
  3. Step 3: Cross multiply
    80,765.40x = 111,455.43 × 44,465.70
  4. Step 4: Simplify right side
    80,765.40x = 4,955,943,713.75
  5. Step 5: Solve for x
    x = 4,955,943,713.75/80,765.40
  6. Step 6: Final answer
    x = 61,362.21

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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.