Home / 51,140.50-70,574.97-28,784.50

Finding the Fourth Proportional to 51,140.50, 70,574.97 and 28,784.50

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Solution

The fourth proportional to 51,140.50, 70,574.97 and 28,784.50 is: 39,723.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,140.50 : 70,574.97 = 28,784.50 : x
  2. Step 2: Convert to fraction form
    51,140.50/70,574.97 = 28,784.50/x
  3. Step 3: Cross multiply
    51,140.50x = 70,574.97 × 28,784.50
  4. Step 4: Simplify right side
    51,140.50x = 2,031,465,223.97
  5. Step 5: Solve for x
    x = 2,031,465,223.97/51,140.50
  6. Step 6: Final answer
    x = 39,723.22

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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.