Home / 89,023.60-133,535.40-87,079.60

Finding the Fourth Proportional to 89,023.60, 133,535.40 and 87,079.60

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Solution

The fourth proportional to 89,023.60, 133,535.40 and 87,079.60 is: 130,619.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,023.60 : 133,535.40 = 87,079.60 : x
  2. Step 2: Convert to fraction form
    89,023.60/133,535.40 = 87,079.60/x
  3. Step 3: Cross multiply
    89,023.60x = 133,535.40 × 87,079.60
  4. Step 4: Simplify right side
    89,023.60x = 11,628,209,217.84
  5. Step 5: Solve for x
    x = 11,628,209,217.84/89,023.60
  6. Step 6: Final answer
    x = 130,619.40

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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.