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Finding the Fourth Proportional to 89,000.65, 122,820.59 and 48,164.70

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Solution

The fourth proportional to 89,000.65, 122,820.59 and 48,164.70 is: 66,467.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,000.65 : 122,820.59 = 48,164.70 : x
  2. Step 2: Convert to fraction form
    89,000.65/122,820.59 = 48,164.70/x
  3. Step 3: Cross multiply
    89,000.65x = 122,820.59 × 48,164.70
  4. Step 4: Simplify right side
    89,000.65x = 5,915,616,871.17
  5. Step 5: Solve for x
    x = 5,915,616,871.17/89,000.65
  6. Step 6: Final answer
    x = 66,467.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.