Home / 85,401.41-128,101.84-23,071.91

Finding the Fourth Proportional to 85,401.41, 128,101.84 and 23,071.91

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Solution

The fourth proportional to 85,401.41, 128,101.84 and 23,071.91 is: 34,607.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,401.41 : 128,101.84 = 23,071.91 : x
  2. Step 2: Convert to fraction form
    85,401.41/128,101.84 = 23,071.91/x
  3. Step 3: Cross multiply
    85,401.41x = 128,101.84 × 23,071.91
  4. Step 4: Simplify right side
    85,401.41x = 2,955,553,425.13
  5. Step 5: Solve for x
    x = 2,955,553,425.13/85,401.41
  6. Step 6: Final answer
    x = 34,607.78

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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.