Home / 85,964.41-128,940.51-22,783.13

Finding the Fourth Proportional to 85,964.41, 128,940.51 and 22,783.13

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Solution

The fourth proportional to 85,964.41, 128,940.51 and 22,783.13 is: 34,173.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,964.41 : 128,940.51 = 22,783.13 : x
  2. Step 2: Convert to fraction form
    85,964.41/128,940.51 = 22,783.13/x
  3. Step 3: Cross multiply
    85,964.41x = 128,940.51 × 22,783.13
  4. Step 4: Simplify right side
    85,964.41x = 2,937,668,401.60
  5. Step 5: Solve for x
    x = 2,937,668,401.60/85,964.41
  6. Step 6: Final answer
    x = 34,173.08

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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.