Home / 85,388.40-128,082.54-23,058.84

Finding the Fourth Proportional to 85,388.40, 128,082.54 and 23,058.84

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Solution

The fourth proportional to 85,388.40, 128,082.54 and 23,058.84 is: 34,588.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,388.40 : 128,082.54 = 23,058.84 : x
  2. Step 2: Convert to fraction form
    85,388.40/128,082.54 = 23,058.84/x
  3. Step 3: Cross multiply
    85,388.40x = 128,082.54 × 23,058.84
  4. Step 4: Simplify right side
    85,388.40x = 2,953,434,796.65
  5. Step 5: Solve for x
    x = 2,953,434,796.65/85,388.40
  6. Step 6: Final answer
    x = 34,588.24

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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.