Home / 84,298.32-126,453.96-31,706.64

Finding the Fourth Proportional to 84,298.32, 126,453.96 and 31,706.64

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Solution

The fourth proportional to 84,298.32, 126,453.96 and 31,706.64 is: 47,562.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,298.32 : 126,453.96 = 31,706.64 : x
  2. Step 2: Convert to fraction form
    84,298.32/126,453.96 = 31,706.64/x
  3. Step 3: Cross multiply
    84,298.32x = 126,453.96 × 31,706.64
  4. Step 4: Simplify right side
    84,298.32x = 4,009,430,186.29
  5. Step 5: Solve for x
    x = 4,009,430,186.29/84,298.32
  6. Step 6: Final answer
    x = 47,562.40

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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.