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Finding the Fourth Proportional to 89,030.40, 133,372.80 and 49,516.80

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Solution

The fourth proportional to 89,030.40, 133,372.80 and 49,516.80 is: 74,179.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,030.40 : 133,372.80 = 49,516.80 : x
  2. Step 2: Convert to fraction form
    89,030.40/133,372.80 = 49,516.80/x
  3. Step 3: Cross multiply
    89,030.40x = 133,372.80 × 49,516.80
  4. Step 4: Simplify right side
    89,030.40x = 6,604,194,263.04
  5. Step 5: Solve for x
    x = 6,604,194,263.04/89,030.40
  6. Step 6: Final answer
    x = 74,179.09

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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.