Home / 89,153.40-133,730.10-57,660.60

Finding the Fourth Proportional to 89,153.40, 133,730.10 and 57,660.60

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Solution

The fourth proportional to 89,153.40, 133,730.10 and 57,660.60 is: 86,490.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,153.40 : 133,730.10 = 57,660.60 : x
  2. Step 2: Convert to fraction form
    89,153.40/133,730.10 = 57,660.60/x
  3. Step 3: Cross multiply
    89,153.40x = 133,730.10 × 57,660.60
  4. Step 4: Simplify right side
    89,153.40x = 7,710,957,804.06
  5. Step 5: Solve for x
    x = 7,710,957,804.06/89,153.40
  6. Step 6: Final answer
    x = 86,490.90

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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.