Home / 99,533.04-137,373.48-57,105.60

Finding the Fourth Proportional to 99,533.04, 137,373.48 and 57,105.60

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Solution

The fourth proportional to 99,533.04, 137,373.48 and 57,105.60 is: 78,815.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,533.04 : 137,373.48 = 57,105.60 : x
  2. Step 2: Convert to fraction form
    99,533.04/137,373.48 = 57,105.60/x
  3. Step 3: Cross multiply
    99,533.04x = 137,373.48 × 57,105.60
  4. Step 4: Simplify right side
    99,533.04x = 7,844,794,999.49
  5. Step 5: Solve for x
    x = 7,844,794,999.49/99,533.04
  6. Step 6: Final answer
    x = 78,815.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.