Home / 52,621.28-72,617.10-28,749.32

Finding the Fourth Proportional to 52,621.28, 72,617.10 and 28,749.32

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Solution

The fourth proportional to 52,621.28, 72,617.10 and 28,749.32 is: 39,673.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,621.28 : 72,617.10 = 28,749.32 : x
  2. Step 2: Convert to fraction form
    52,621.28/72,617.10 = 28,749.32/x
  3. Step 3: Cross multiply
    52,621.28x = 72,617.10 × 28,749.32
  4. Step 4: Simplify right side
    52,621.28x = 2,087,692,245.37
  5. Step 5: Solve for x
    x = 2,087,692,245.37/52,621.28
  6. Step 6: Final answer
    x = 39,673.92

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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.