Home / 91,542.10-137,365.05-49,421.62

Finding the Fourth Proportional to 91,542.10, 137,365.05 and 49,421.62

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Solution

The fourth proportional to 91,542.10, 137,365.05 and 49,421.62 is: 74,160.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,542.10 : 137,365.05 = 49,421.62 : x
  2. Step 2: Convert to fraction form
    91,542.10/137,365.05 = 49,421.62/x
  3. Step 3: Cross multiply
    91,542.10x = 137,365.05 × 49,421.62
  4. Step 4: Simplify right side
    91,542.10x = 6,788,802,368.45
  5. Step 5: Solve for x
    x = 6,788,802,368.45/91,542.10
  6. Step 6: Final answer
    x = 74,160.44

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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.