Home / 81,213.33-112,074.48-45,403.32

Finding the Fourth Proportional to 81,213.33, 112,074.48 and 45,403.32

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Solution

The fourth proportional to 81,213.33, 112,074.48 and 45,403.32 is: 62,656.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,213.33 : 112,074.48 = 45,403.32 : x
  2. Step 2: Convert to fraction form
    81,213.33/112,074.48 = 45,403.32/x
  3. Step 3: Cross multiply
    81,213.33x = 112,074.48 × 45,403.32
  4. Step 4: Simplify right side
    81,213.33x = 5,088,553,479.27
  5. Step 5: Solve for x
    x = 5,088,553,479.27/81,213.33
  6. Step 6: Final answer
    x = 62,656.63

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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.