Home / 86,192.10-129,324.60-54,626.40

Finding the Fourth Proportional to 86,192.10, 129,324.60 and 54,626.40

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Solution

The fourth proportional to 86,192.10, 129,324.60 and 54,626.40 is: 81,962.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,192.10 : 129,324.60 = 54,626.40 : x
  2. Step 2: Convert to fraction form
    86,192.10/129,324.60 = 54,626.40/x
  3. Step 3: Cross multiply
    86,192.10x = 129,324.60 × 54,626.40
  4. Step 4: Simplify right side
    86,192.10x = 7,064,537,329.44
  5. Step 5: Solve for x
    x = 7,064,537,329.44/86,192.10
  6. Step 6: Final answer
    x = 81,962.70

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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.