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Finding the Fourth Proportional to 89,744.40, 134,569.44 and 39,802.90

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Solution

The fourth proportional to 89,744.40, 134,569.44 and 39,802.90 is: 59,683.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,744.40 : 134,569.44 = 39,802.90 : x
  2. Step 2: Convert to fraction form
    89,744.40/134,569.44 = 39,802.90/x
  3. Step 3: Cross multiply
    89,744.40x = 134,569.44 × 39,802.90
  4. Step 4: Simplify right side
    89,744.40x = 5,356,253,963.38
  5. Step 5: Solve for x
    x = 5,356,253,963.38/89,744.40
  6. Step 6: Final answer
    x = 59,683.43

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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.