Home / 84,299.32-126,455.46-31,707.64

Finding the Fourth Proportional to 84,299.32, 126,455.46 and 31,707.64

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Solution

The fourth proportional to 84,299.32, 126,455.46 and 31,707.64 is: 47,563.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,299.32 : 126,455.46 = 31,707.64 : x
  2. Step 2: Convert to fraction form
    84,299.32/126,455.46 = 31,707.64/x
  3. Step 3: Cross multiply
    84,299.32x = 126,455.46 × 31,707.64
  4. Step 4: Simplify right side
    84,299.32x = 4,009,604,201.71
  5. Step 5: Solve for x
    x = 4,009,604,201.71/84,299.32
  6. Step 6: Final answer
    x = 47,563.90

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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.