Home / 51,138.08-70,568.64-28,477.88

Finding the Fourth Proportional to 51,138.08, 70,568.64 and 28,477.88

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Solution

The fourth proportional to 51,138.08, 70,568.64 and 28,477.88 is: 39,298.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,138.08 : 70,568.64 = 28,477.88 : x
  2. Step 2: Convert to fraction form
    51,138.08/70,568.64 = 28,477.88/x
  3. Step 3: Cross multiply
    51,138.08x = 70,568.64 × 28,477.88
  4. Step 4: Simplify right side
    51,138.08x = 2,009,645,261.68
  5. Step 5: Solve for x
    x = 2,009,645,261.68/51,138.08
  6. Step 6: Final answer
    x = 39,298.41

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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.