Home / 89,211.50-133,869.09-39,963.50

Finding the Fourth Proportional to 89,211.50, 133,869.09 and 39,963.50

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Solution

The fourth proportional to 89,211.50, 133,869.09 and 39,963.50 is: 59,968.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,211.50 : 133,869.09 = 39,963.50 : x
  2. Step 2: Convert to fraction form
    89,211.50/133,869.09 = 39,963.50/x
  3. Step 3: Cross multiply
    89,211.50x = 133,869.09 × 39,963.50
  4. Step 4: Simplify right side
    89,211.50x = 5,349,877,378.22
  5. Step 5: Solve for x
    x = 5,349,877,378.22/89,211.50
  6. Step 6: Final answer
    x = 59,968.47

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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.