Home / 81,530.24-112,512.92-47,537.80

Finding the Fourth Proportional to 81,530.24, 112,512.92 and 47,537.80

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Solution

The fourth proportional to 81,530.24, 112,512.92 and 47,537.80 is: 65,602.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,530.24 : 112,512.92 = 47,537.80 : x
  2. Step 2: Convert to fraction form
    81,530.24/112,512.92 = 47,537.80/x
  3. Step 3: Cross multiply
    81,530.24x = 112,512.92 × 47,537.80
  4. Step 4: Simplify right side
    81,530.24x = 5,348,616,688.38
  5. Step 5: Solve for x
    x = 5,348,616,688.38/81,530.24
  6. Step 6: Final answer
    x = 65,602.86

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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.