Home / 53,296.26-79,938.70-28,309.78

Finding the Fourth Proportional to 53,296.26, 79,938.70 and 28,309.78

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Solution

The fourth proportional to 53,296.26, 79,938.70 and 28,309.78 is: 42,461.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,296.26 : 79,938.70 = 28,309.78 : x
  2. Step 2: Convert to fraction form
    53,296.26/79,938.70 = 28,309.78/x
  3. Step 3: Cross multiply
    53,296.26x = 79,938.70 × 28,309.78
  4. Step 4: Simplify right side
    53,296.26x = 2,263,047,010.49
  5. Step 5: Solve for x
    x = 2,263,047,010.49/53,296.26
  6. Step 6: Final answer
    x = 42,461.65

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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.