Home / 89,211.36-123,117.12-51,488.04

Finding the Fourth Proportional to 89,211.36, 123,117.12 and 51,488.04

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Solution

The fourth proportional to 89,211.36, 123,117.12 and 51,488.04 is: 71,056.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,211.36 : 123,117.12 = 51,488.04 : x
  2. Step 2: Convert to fraction form
    89,211.36/123,117.12 = 51,488.04/x
  3. Step 3: Cross multiply
    89,211.36x = 123,117.12 × 51,488.04
  4. Step 4: Simplify right side
    89,211.36x = 6,339,059,199.24
  5. Step 5: Solve for x
    x = 6,339,059,199.24/89,211.36
  6. Step 6: Final answer
    x = 71,056.64

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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.