Home / 85,331.48-128,000.46-23,002.52

Finding the Fourth Proportional to 85,331.48, 128,000.46 and 23,002.52

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Solution

The fourth proportional to 85,331.48, 128,000.46 and 23,002.52 is: 34,504.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,331.48 : 128,000.46 = 23,002.52 : x
  2. Step 2: Convert to fraction form
    85,331.48/128,000.46 = 23,002.52/x
  3. Step 3: Cross multiply
    85,331.48x = 128,000.46 × 23,002.52
  4. Step 4: Simplify right side
    85,331.48x = 2,944,333,141.16
  5. Step 5: Solve for x
    x = 2,944,333,141.16/85,331.48
  6. Step 6: Final answer
    x = 34,504.65

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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.