Home / 92,923.13-128,234.43-57,136.52

Finding the Fourth Proportional to 92,923.13, 128,234.43 and 57,136.52

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Solution

The fourth proportional to 92,923.13, 128,234.43 and 57,136.52 is: 78,848.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,923.13 : 128,234.43 = 57,136.52 : x
  2. Step 2: Convert to fraction form
    92,923.13/128,234.43 = 57,136.52/x
  3. Step 3: Cross multiply
    92,923.13x = 128,234.43 × 57,136.52
  4. Step 4: Simplify right side
    92,923.13x = 7,326,869,074.38
  5. Step 5: Solve for x
    x = 7,326,869,074.38/92,923.13
  6. Step 6: Final answer
    x = 78,848.71

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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.