Home / 51,430.97-70,971.39-28,766.03

Finding the Fourth Proportional to 51,430.97, 70,971.39 and 28,766.03

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Solution

The fourth proportional to 51,430.97, 70,971.39 and 28,766.03 is: 39,695.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,430.97 : 70,971.39 = 28,766.03 : x
  2. Step 2: Convert to fraction form
    51,430.97/70,971.39 = 28,766.03/x
  3. Step 3: Cross multiply
    51,430.97x = 70,971.39 × 28,766.03
  4. Step 4: Simplify right side
    51,430.97x = 2,041,565,311.31
  5. Step 5: Solve for x
    x = 2,041,565,311.31/51,430.97
  6. Step 6: Final answer
    x = 39,695.25

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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.