Home / 51,783.91-71,455.52-28,808.30

Finding the Fourth Proportional to 51,783.91, 71,455.52 and 28,808.30

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Solution

The fourth proportional to 51,783.91, 71,455.52 and 28,808.30 is: 39,751.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,783.91 : 71,455.52 = 28,808.30 : x
  2. Step 2: Convert to fraction form
    51,783.91/71,455.52 = 28,808.30/x
  3. Step 3: Cross multiply
    51,783.91x = 71,455.52 × 28,808.30
  4. Step 4: Simplify right side
    51,783.91x = 2,058,512,307.48
  5. Step 5: Solve for x
    x = 2,058,512,307.48/51,783.91
  6. Step 6: Final answer
    x = 39,751.97

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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.