Home / 81,537.39-112,549.23-51,373.26

Finding the Fourth Proportional to 81,537.39, 112,549.23 and 51,373.26

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Solution

The fourth proportional to 81,537.39, 112,549.23 and 51,373.26 is: 70,912.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,537.39 : 112,549.23 = 51,373.26 : x
  2. Step 2: Convert to fraction form
    81,537.39/112,549.23 = 51,373.26/x
  3. Step 3: Cross multiply
    81,537.39x = 112,549.23 × 51,373.26
  4. Step 4: Simplify right side
    81,537.39x = 5,782,020,855.59
  5. Step 5: Solve for x
    x = 5,782,020,855.59/81,537.39
  6. Step 6: Final answer
    x = 70,912.51

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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.