Home / 85,812.10-128,706.83-22,637.16

Finding the Fourth Proportional to 85,812.10, 128,706.83 and 22,637.16

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Solution

The fourth proportional to 85,812.10, 128,706.83 and 22,637.16 is: 33,952.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,812.10 : 128,706.83 = 22,637.16 : x
  2. Step 2: Convert to fraction form
    85,812.10/128,706.83 = 22,637.16/x
  3. Step 3: Cross multiply
    85,812.10x = 128,706.83 × 22,637.16
  4. Step 4: Simplify right side
    85,812.10x = 2,913,557,160.40
  5. Step 5: Solve for x
    x = 2,913,557,160.40/85,812.10
  6. Step 6: Final answer
    x = 33,952.76

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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.