Home / 85,545.66-128,228.28-35,575.46

Finding the Fourth Proportional to 85,545.66, 128,228.28 and 35,575.46

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Solution

The fourth proportional to 85,545.66, 128,228.28 and 35,575.46 is: 53,325.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,545.66 : 128,228.28 = 35,575.46 : x
  2. Step 2: Convert to fraction form
    85,545.66/128,228.28 = 35,575.46/x
  3. Step 3: Cross multiply
    85,545.66x = 128,228.28 × 35,575.46
  4. Step 4: Simplify right side
    85,545.66x = 4,561,780,046.01
  5. Step 5: Solve for x
    x = 4,561,780,046.01/85,545.66
  6. Step 6: Final answer
    x = 53,325.67

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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.