Home / 91,132.40-136,698.60-57,999.35

Finding the Fourth Proportional to 91,132.40, 136,698.60 and 57,999.35

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Solution

The fourth proportional to 91,132.40, 136,698.60 and 57,999.35 is: 86,999.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,132.40 : 136,698.60 = 57,999.35 : x
  2. Step 2: Convert to fraction form
    91,132.40/136,698.60 = 57,999.35/x
  3. Step 3: Cross multiply
    91,132.40x = 136,698.60 × 57,999.35
  4. Step 4: Simplify right side
    91,132.40x = 7,928,429,945.91
  5. Step 5: Solve for x
    x = 7,928,429,945.91/91,132.40
  6. Step 6: Final answer
    x = 86,999.03

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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.