Home / 57,645.28-79,550.52-31,149.28

Finding the Fourth Proportional to 57,645.28, 79,550.52 and 31,149.28

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Solution

The fourth proportional to 57,645.28, 79,550.52 and 31,149.28 is: 42,986.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,645.28 : 79,550.52 = 31,149.28 : x
  2. Step 2: Convert to fraction form
    57,645.28/79,550.52 = 31,149.28/x
  3. Step 3: Cross multiply
    57,645.28x = 79,550.52 × 31,149.28
  4. Step 4: Simplify right side
    57,645.28x = 2,477,941,421.63
  5. Step 5: Solve for x
    x = 2,477,941,421.63/57,645.28
  6. Step 6: Final answer
    x = 42,986.02

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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.