Home / 91,542.22-137,365.23-49,421.74

Finding the Fourth Proportional to 91,542.22, 137,365.23 and 49,421.74

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Solution

The fourth proportional to 91,542.22, 137,365.23 and 49,421.74 is: 74,160.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,542.22 : 137,365.23 = 49,421.74 : x
  2. Step 2: Convert to fraction form
    91,542.22/137,365.23 = 49,421.74/x
  3. Step 3: Cross multiply
    91,542.22x = 137,365.23 × 49,421.74
  4. Step 4: Simplify right side
    91,542.22x = 6,788,828,682.10
  5. Step 5: Solve for x
    x = 6,788,828,682.10/91,542.22
  6. Step 6: Final answer
    x = 74,160.63

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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.