Home / 57,746.32-86,549.72-28,119.76

Finding the Fourth Proportional to 57,746.32, 86,549.72 and 28,119.76

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Solution

The fourth proportional to 57,746.32, 86,549.72 and 28,119.76 is: 42,145.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,746.32 : 86,549.72 = 28,119.76 : x
  2. Step 2: Convert to fraction form
    57,746.32/86,549.72 = 28,119.76/x
  3. Step 3: Cross multiply
    57,746.32x = 86,549.72 × 28,119.76
  4. Step 4: Simplify right side
    57,746.32x = 2,433,757,354.47
  5. Step 5: Solve for x
    x = 2,433,757,354.47/57,746.32
  6. Step 6: Final answer
    x = 42,145.67

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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.