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Finding the Fourth Proportional to 89,062.40, 122,880.88 and 51,329.44

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Solution

The fourth proportional to 89,062.40, 122,880.88 and 51,329.44 is: 70,820.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,062.40 : 122,880.88 = 51,329.44 : x
  2. Step 2: Convert to fraction form
    89,062.40/122,880.88 = 51,329.44/x
  3. Step 3: Cross multiply
    89,062.40x = 122,880.88 × 51,329.44
  4. Step 4: Simplify right side
    89,062.40x = 6,307,406,757.11
  5. Step 5: Solve for x
    x = 6,307,406,757.11/89,062.40
  6. Step 6: Final answer
    x = 70,820.09

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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.