Home / 91,505.20-137,262.70-28,368.94

Finding the Fourth Proportional to 91,505.20, 137,262.70 and 28,368.94

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Solution

The fourth proportional to 91,505.20, 137,262.70 and 28,368.94 is: 42,554.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,505.20 : 137,262.70 = 28,368.94 : x
  2. Step 2: Convert to fraction form
    91,505.20/137,262.70 = 28,368.94/x
  3. Step 3: Cross multiply
    91,505.20x = 137,262.70 × 28,368.94
  4. Step 4: Simplify right side
    91,505.20x = 3,893,997,300.54
  5. Step 5: Solve for x
    x = 3,893,997,300.54/91,505.20
  6. Step 6: Final answer
    x = 42,554.93

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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.