Home / 46,783.72-64,512.36-30,847.78

Finding the Fourth Proportional to 46,783.72, 64,512.36 and 30,847.78

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Solution

The fourth proportional to 46,783.72, 64,512.36 and 30,847.78 is: 42,537.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,783.72 : 64,512.36 = 30,847.78 : x
  2. Step 2: Convert to fraction form
    46,783.72/64,512.36 = 30,847.78/x
  3. Step 3: Cross multiply
    46,783.72x = 64,512.36 × 30,847.78
  4. Step 4: Simplify right side
    46,783.72x = 1,990,063,088.56
  5. Step 5: Solve for x
    x = 1,990,063,088.56/46,783.72
  6. Step 6: Final answer
    x = 42,537.51

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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.