Home / 51,146.60-70,583.10-28,790.60

Finding the Fourth Proportional to 51,146.60, 70,583.10 and 28,790.60

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Solution

The fourth proportional to 51,146.60, 70,583.10 and 28,790.60 is: 39,731.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,146.60 : 70,583.10 = 28,790.60 : x
  2. Step 2: Convert to fraction form
    51,146.60/70,583.10 = 28,790.60/x
  3. Step 3: Cross multiply
    51,146.60x = 70,583.10 × 28,790.60
  4. Step 4: Simplify right side
    51,146.60x = 2,032,129,798.86
  5. Step 5: Solve for x
    x = 2,032,129,798.86/51,146.60
  6. Step 6: Final answer
    x = 39,731.47

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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.