Home / 89,113.40-133,670.10-57,620.60

Finding the Fourth Proportional to 89,113.40, 133,670.10 and 57,620.60

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Solution

The fourth proportional to 89,113.40, 133,670.10 and 57,620.60 is: 86,430.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,113.40 : 133,670.10 = 57,620.60 : x
  2. Step 2: Convert to fraction form
    89,113.40/133,670.10 = 57,620.60/x
  3. Step 3: Cross multiply
    89,113.40x = 133,670.10 × 57,620.60
  4. Step 4: Simplify right side
    89,113.40x = 7,702,151,364.06
  5. Step 5: Solve for x
    x = 7,702,151,364.06/89,113.40
  6. Step 6: Final answer
    x = 86,430.90

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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.