Home / 53,269.12-73,576.80-39,900.12

Finding the Fourth Proportional to 53,269.12, 73,576.80 and 39,900.12

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Solution

The fourth proportional to 53,269.12, 73,576.80 and 39,900.12 is: 55,111.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,269.12 : 73,576.80 = 39,900.12 : x
  2. Step 2: Convert to fraction form
    53,269.12/73,576.80 = 39,900.12/x
  3. Step 3: Cross multiply
    53,269.12x = 73,576.80 × 39,900.12
  4. Step 4: Simplify right side
    53,269.12x = 2,935,723,149.22
  5. Step 5: Solve for x
    x = 2,935,723,149.22/53,269.12
  6. Step 6: Final answer
    x = 55,111.16

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1.5x scale

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.