Home / 85,595.11-128,437.44-35,031.67

Finding the Fourth Proportional to 85,595.11, 128,437.44 and 35,031.67

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Solution

The fourth proportional to 85,595.11, 128,437.44 and 35,031.67 is: 52,565.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,595.11 : 128,437.44 = 35,031.67 : x
  2. Step 2: Convert to fraction form
    85,595.11/128,437.44 = 35,031.67/x
  3. Step 3: Cross multiply
    85,595.11x = 128,437.44 × 35,031.67
  4. Step 4: Simplify right side
    85,595.11x = 4,499,378,013.72
  5. Step 5: Solve for x
    x = 4,499,378,013.72/85,595.11
  6. Step 6: Final answer
    x = 52,565.83

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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.