Home / 92,880.10-128,213.78-62,706.29

Finding the Fourth Proportional to 92,880.10, 128,213.78 and 62,706.29

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Solution

The fourth proportional to 92,880.10, 128,213.78 and 62,706.29 is: 86,561.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,880.10 : 128,213.78 = 62,706.29 : x
  2. Step 2: Convert to fraction form
    92,880.10/128,213.78 = 62,706.29/x
  3. Step 3: Cross multiply
    92,880.10x = 128,213.78 × 62,706.29
  4. Step 4: Simplify right side
    92,880.10x = 8,039,810,477.68
  5. Step 5: Solve for x
    x = 8,039,810,477.68/92,880.10
  6. Step 6: Final answer
    x = 86,561.18

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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.