Home / 51,107.60-70,526.76-28,747.28

Finding the Fourth Proportional to 51,107.60, 70,526.76 and 28,747.28

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Solution

The fourth proportional to 51,107.60, 70,526.76 and 28,747.28 is: 39,670.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,107.60 : 70,526.76 = 28,747.28 : x
  2. Step 2: Convert to fraction form
    51,107.60/70,526.76 = 28,747.28/x
  3. Step 3: Cross multiply
    51,107.60x = 70,526.76 × 28,747.28
  4. Step 4: Simplify right side
    51,107.60x = 2,027,452,517.21
  5. Step 5: Solve for x
    x = 2,027,452,517.21/51,107.60
  6. Step 6: Final answer
    x = 39,670.27

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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.