Home / 51,429.65-70,969.58-28,764.72

Finding the Fourth Proportional to 51,429.65, 70,969.58 and 28,764.72

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Solution

The fourth proportional to 51,429.65, 70,969.58 and 28,764.72 is: 39,693.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,429.65 : 70,969.58 = 28,764.72 : x
  2. Step 2: Convert to fraction form
    51,429.65/70,969.58 = 28,764.72/x
  3. Step 3: Cross multiply
    51,429.65x = 70,969.58 × 28,764.72
  4. Step 4: Simplify right side
    51,429.65x = 2,041,420,223.06
  5. Step 5: Solve for x
    x = 2,041,420,223.06/51,429.65
  6. Step 6: Final answer
    x = 39,693.45

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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.