Home / 51,165.30-70,610.31-28,504.32

Finding the Fourth Proportional to 51,165.30, 70,610.31 and 28,504.32

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Solution

The fourth proportional to 51,165.30, 70,610.31 and 28,504.32 is: 39,337.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,165.30 : 70,610.31 = 28,504.32 : x
  2. Step 2: Convert to fraction form
    51,165.30/70,610.31 = 28,504.32/x
  3. Step 3: Cross multiply
    51,165.30x = 70,610.31 × 28,504.32
  4. Step 4: Simplify right side
    51,165.30x = 2,012,698,871.54
  5. Step 5: Solve for x
    x = 2,012,698,871.54/51,165.30
  6. Step 6: Final answer
    x = 39,337.18

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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.