Home / 84,333.60-126,403.02-31,709.52

Finding the Fourth Proportional to 84,333.60, 126,403.02 and 31,709.52

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Solution

The fourth proportional to 84,333.60, 126,403.02 and 31,709.52 is: 47,527.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,333.60 : 126,403.02 = 31,709.52 : x
  2. Step 2: Convert to fraction form
    84,333.60/126,403.02 = 31,709.52/x
  3. Step 3: Cross multiply
    84,333.60x = 126,403.02 × 31,709.52
  4. Step 4: Simplify right side
    84,333.60x = 4,008,179,090.75
  5. Step 5: Solve for x
    x = 4,008,179,090.75/84,333.60
  6. Step 6: Final answer
    x = 47,527.67

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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.