Home / 92,926.14-128,238.57-57,139.53

Finding the Fourth Proportional to 92,926.14, 128,238.57 and 57,139.53

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Solution

The fourth proportional to 92,926.14, 128,238.57 and 57,139.53 is: 78,852.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,926.14 : 128,238.57 = 57,139.53 : x
  2. Step 2: Convert to fraction form
    92,926.14/128,238.57 = 57,139.53/x
  3. Step 3: Cross multiply
    92,926.14x = 128,238.57 × 57,139.53
  4. Step 4: Simplify right side
    92,926.14x = 7,327,491,617.67
  5. Step 5: Solve for x
    x = 7,327,491,617.67/92,926.14
  6. Step 6: Final answer
    x = 78,852.86

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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.