Home / 86,238.02-129,357.05-38,797.70

Finding the Fourth Proportional to 86,238.02, 129,357.05 and 38,797.70

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Solution

The fourth proportional to 86,238.02, 129,357.05 and 38,797.70 is: 58,196.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,238.02 : 129,357.05 = 38,797.70 : x
  2. Step 2: Convert to fraction form
    86,238.02/129,357.05 = 38,797.70/x
  3. Step 3: Cross multiply
    86,238.02x = 129,357.05 × 38,797.70
  4. Step 4: Simplify right side
    86,238.02x = 5,018,756,123.88
  5. Step 5: Solve for x
    x = 5,018,756,123.88/86,238.02
  6. Step 6: Final answer
    x = 58,196.56

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1.5x scale

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.