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Finding the Fourth Proportional to 51,155.52, 70,592.28 and 28,493.28

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Solution

The fourth proportional to 51,155.52, 70,592.28 and 28,493.28 is: 39,319.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,155.52 : 70,592.28 = 28,493.28 : x
  2. Step 2: Convert to fraction form
    51,155.52/70,592.28 = 28,493.28/x
  3. Step 3: Cross multiply
    51,155.52x = 70,592.28 × 28,493.28
  4. Step 4: Simplify right side
    51,155.52x = 2,011,405,599.88
  5. Step 5: Solve for x
    x = 2,011,405,599.88/51,155.52
  6. Step 6: Final answer
    x = 39,319.42

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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.