Home / 50,868.81-70,199.79-28,208.76

Finding the Fourth Proportional to 50,868.81, 70,199.79 and 28,208.76

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Solution

The fourth proportional to 50,868.81, 70,199.79 and 28,208.76 is: 38,928.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,868.81 : 70,199.79 = 28,208.76 : x
  2. Step 2: Convert to fraction form
    50,868.81/70,199.79 = 28,208.76/x
  3. Step 3: Cross multiply
    50,868.81x = 70,199.79 × 28,208.76
  4. Step 4: Simplify right side
    50,868.81x = 1,980,249,028.16
  5. Step 5: Solve for x
    x = 1,980,249,028.16/50,868.81
  6. Step 6: Final answer
    x = 38,928.55

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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.