Home / 89,021.50-133,428.49-49,559.74

Finding the Fourth Proportional to 89,021.50, 133,428.49 and 49,559.74

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Solution

The fourth proportional to 89,021.50, 133,428.49 and 49,559.74 is: 74,281.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,021.50 : 133,428.49 = 49,559.74 : x
  2. Step 2: Convert to fraction form
    89,021.50/133,428.49 = 49,559.74/x
  3. Step 3: Cross multiply
    89,021.50x = 133,428.49 × 49,559.74
  4. Step 4: Simplify right side
    89,021.50x = 6,612,681,272.99
  5. Step 5: Solve for x
    x = 6,612,681,272.99/89,021.50
  6. Step 6: Final answer
    x = 74,281.85

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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.