Home / 91,327.52-136,991.54-28,145.60

Finding the Fourth Proportional to 91,327.52, 136,991.54 and 28,145.60

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Solution

The fourth proportional to 91,327.52, 136,991.54 and 28,145.60 is: 42,218.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,327.52 : 136,991.54 = 28,145.60 : x
  2. Step 2: Convert to fraction form
    91,327.52/136,991.54 = 28,145.60/x
  3. Step 3: Cross multiply
    91,327.52x = 136,991.54 × 28,145.60
  4. Step 4: Simplify right side
    91,327.52x = 3,855,709,088.22
  5. Step 5: Solve for x
    x = 3,855,709,088.22/91,327.52
  6. Step 6: Final answer
    x = 42,218.48

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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.