Home / 53,904.66-80,856.45-38,420.70

Finding the Fourth Proportional to 53,904.66, 80,856.45 and 38,420.70

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Solution

The fourth proportional to 53,904.66, 80,856.45 and 38,420.70 is: 57,630.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,904.66 : 80,856.45 = 38,420.70 : x
  2. Step 2: Convert to fraction form
    53,904.66/80,856.45 = 38,420.70/x
  3. Step 3: Cross multiply
    53,904.66x = 80,856.45 × 38,420.70
  4. Step 4: Simplify right side
    53,904.66x = 3,106,561,408.52
  5. Step 5: Solve for x
    x = 3,106,561,408.52/53,904.66
  6. Step 6: Final answer
    x = 57,630.67

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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.