Home / 145,006.32-217,469.88-39,800.28

Finding the Fourth Proportional to 145,006.32, 217,469.88 and 39,800.28

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Solution

The fourth proportional to 145,006.32, 217,469.88 and 39,800.28 is: 59,689.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,006.32 : 217,469.88 = 39,800.28 : x
  2. Step 2: Convert to fraction form
    145,006.32/217,469.88 = 39,800.28/x
  3. Step 3: Cross multiply
    145,006.32x = 217,469.88 × 39,800.28
  4. Step 4: Simplify right side
    145,006.32x = 8,655,362,115.57
  5. Step 5: Solve for x
    x = 8,655,362,115.57/145,006.32
  6. Step 6: Final answer
    x = 59,689.55

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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.