Home / 85,331.60-128,017.92-32,741.09

Finding the Fourth Proportional to 85,331.60, 128,017.92 and 32,741.09

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Solution

The fourth proportional to 85,331.60, 128,017.92 and 32,741.09 is: 49,119.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,331.60 : 128,017.92 = 32,741.09 : x
  2. Step 2: Convert to fraction form
    85,331.60/128,017.92 = 32,741.09/x
  3. Step 3: Cross multiply
    85,331.60x = 128,017.92 × 32,741.09
  4. Step 4: Simplify right side
    85,331.60x = 4,191,445,658.87
  5. Step 5: Solve for x
    x = 4,191,445,658.87/85,331.60
  6. Step 6: Final answer
    x = 49,119.50

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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.