Home / 43,270.20-64,905.30-28,495.80

Finding the Fourth Proportional to 43,270.20, 64,905.30 and 28,495.80

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Solution

The fourth proportional to 43,270.20, 64,905.30 and 28,495.80 is: 42,743.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,270.20 : 64,905.30 = 28,495.80 : x
  2. Step 2: Convert to fraction form
    43,270.20/64,905.30 = 28,495.80/x
  3. Step 3: Cross multiply
    43,270.20x = 64,905.30 × 28,495.80
  4. Step 4: Simplify right side
    43,270.20x = 1,849,528,447.74
  5. Step 5: Solve for x
    x = 1,849,528,447.74/43,270.20
  6. Step 6: Final answer
    x = 42,743.70

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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.