Home / 85,591.28-128,386.56-23,261.60

Finding the Fourth Proportional to 85,591.28, 128,386.56 and 23,261.60

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Solution

The fourth proportional to 85,591.28, 128,386.56 and 23,261.60 is: 34,892.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,591.28 : 128,386.56 = 23,261.60 : x
  2. Step 2: Convert to fraction form
    85,591.28/128,386.56 = 23,261.60/x
  3. Step 3: Cross multiply
    85,591.28x = 128,386.56 × 23,261.60
  4. Step 4: Simplify right side
    85,591.28x = 2,986,476,804.10
  5. Step 5: Solve for x
    x = 2,986,476,804.10/85,591.28
  6. Step 6: Final answer
    x = 34,892.30

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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.