Home / 51,132.07-70,561.56-28,470.43

Finding the Fourth Proportional to 51,132.07, 70,561.56 and 28,470.43

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Solution

The fourth proportional to 51,132.07, 70,561.56 and 28,470.43 is: 39,288.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,132.07 : 70,561.56 = 28,470.43 : x
  2. Step 2: Convert to fraction form
    51,132.07/70,561.56 = 28,470.43/x
  3. Step 3: Cross multiply
    51,132.07x = 70,561.56 × 28,470.43
  4. Step 4: Simplify right side
    51,132.07x = 2,008,917,954.67
  5. Step 5: Solve for x
    x = 2,008,917,954.67/51,132.07
  6. Step 6: Final answer
    x = 39,288.81

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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.