Home / 85,507.24-128,286.78-60,595.48

Finding the Fourth Proportional to 85,507.24, 128,286.78 and 60,595.48

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Solution

The fourth proportional to 85,507.24, 128,286.78 and 60,595.48 is: 90,911.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,507.24 : 128,286.78 = 60,595.48 : x
  2. Step 2: Convert to fraction form
    85,507.24/128,286.78 = 60,595.48/x
  3. Step 3: Cross multiply
    85,507.24x = 128,286.78 × 60,595.48
  4. Step 4: Simplify right side
    85,507.24x = 7,773,599,011.75
  5. Step 5: Solve for x
    x = 7,773,599,011.75/85,507.24
  6. Step 6: Final answer
    x = 90,911.59

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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.