Home / 92,880.20-128,213.90-62,706.38

Finding the Fourth Proportional to 92,880.20, 128,213.90 and 62,706.38

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Solution

The fourth proportional to 92,880.20, 128,213.90 and 62,706.38 is: 86,561.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,880.20 : 128,213.90 = 62,706.38 : x
  2. Step 2: Convert to fraction form
    92,880.20/128,213.90 = 62,706.38/x
  3. Step 3: Cross multiply
    92,880.20x = 128,213.90 × 62,706.38
  4. Step 4: Simplify right side
    92,880.20x = 8,039,830,011.98
  5. Step 5: Solve for x
    x = 8,039,830,011.98/92,880.20
  6. Step 6: Final answer
    x = 86,561.30

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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.