Home / 57,400.08-79,287.39-39,463.98

Finding the Fourth Proportional to 57,400.08, 79,287.39 and 39,463.98

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Solution

The fourth proportional to 57,400.08, 79,287.39 and 39,463.98 is: 54,512.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,400.08 : 79,287.39 = 39,463.98 : x
  2. Step 2: Convert to fraction form
    57,400.08/79,287.39 = 39,463.98/x
  3. Step 3: Cross multiply
    57,400.08x = 79,287.39 × 39,463.98
  4. Step 4: Simplify right side
    57,400.08x = 3,128,995,973.21
  5. Step 5: Solve for x
    x = 3,128,995,973.21/57,400.08
  6. Step 6: Final answer
    x = 54,512.05

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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.