Home / 81,567.12-112,590.60-51,403.32

Finding the Fourth Proportional to 81,567.12, 112,590.60 and 51,403.32

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Solution

The fourth proportional to 81,567.12, 112,590.60 and 51,403.32 is: 70,954.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,567.12 : 112,590.60 = 51,403.32 : x
  2. Step 2: Convert to fraction form
    81,567.12/112,590.60 = 51,403.32/x
  3. Step 3: Cross multiply
    81,567.12x = 112,590.60 × 51,403.32
  4. Step 4: Simplify right side
    81,567.12x = 5,787,530,640.79
  5. Step 5: Solve for x
    x = 5,787,530,640.79/81,567.12
  6. Step 6: Final answer
    x = 70,954.21

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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.