Home / 50,742.39-70,023.78-28,079.58

Finding the Fourth Proportional to 50,742.39, 70,023.78 and 28,079.58

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Solution

The fourth proportional to 50,742.39, 70,023.78 and 28,079.58 is: 38,749.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,742.39 : 70,023.78 = 28,079.58 : x
  2. Step 2: Convert to fraction form
    50,742.39/70,023.78 = 28,079.58/x
  3. Step 3: Cross multiply
    50,742.39x = 70,023.78 × 28,079.58
  4. Step 4: Simplify right side
    50,742.39x = 1,966,238,332.41
  5. Step 5: Solve for x
    x = 1,966,238,332.41/50,742.39
  6. Step 6: Final answer
    x = 38,749.42

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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.