Home / 47,329.90-70,908.45-28,840.30

Finding the Fourth Proportional to 47,329.90, 70,908.45 and 28,840.30

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Solution

The fourth proportional to 47,329.90, 70,908.45 and 28,840.30 is: 43,207.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,329.90 : 70,908.45 = 28,840.30 : x
  2. Step 2: Convert to fraction form
    47,329.90/70,908.45 = 28,840.30/x
  3. Step 3: Cross multiply
    47,329.90x = 70,908.45 × 28,840.30
  4. Step 4: Simplify right side
    47,329.90x = 2,045,020,970.54
  5. Step 5: Solve for x
    x = 2,045,020,970.54/47,329.90
  6. Step 6: Final answer
    x = 43,207.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.