Home / 81,567.12-122,153.85-46,400.16

Finding the Fourth Proportional to 81,567.12, 122,153.85 and 46,400.16

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Solution

The fourth proportional to 81,567.12, 122,153.85 and 46,400.16 is: 69,488.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,567.12 : 122,153.85 = 46,400.16 : x
  2. Step 2: Convert to fraction form
    81,567.12/122,153.85 = 46,400.16/x
  3. Step 3: Cross multiply
    81,567.12x = 122,153.85 × 46,400.16
  4. Step 4: Simplify right side
    81,567.12x = 5,667,958,184.62
  5. Step 5: Solve for x
    x = 5,667,958,184.62/81,567.12
  6. Step 6: Final answer
    x = 69,488.27

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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.