Home / 83,835.56-115,634.49-56,931.36

Finding the Fourth Proportional to 83,835.56, 115,634.49 and 56,931.36

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Solution

The fourth proportional to 83,835.56, 115,634.49 and 56,931.36 is: 78,525.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,835.56 : 115,634.49 = 56,931.36 : x
  2. Step 2: Convert to fraction form
    83,835.56/115,634.49 = 56,931.36/x
  3. Step 3: Cross multiply
    83,835.56x = 115,634.49 × 56,931.36
  4. Step 4: Simplify right side
    83,835.56x = 6,583,228,131.48
  5. Step 5: Solve for x
    x = 6,583,228,131.48/83,835.56
  6. Step 6: Final answer
    x = 78,525.49

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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.