Home / 70,875.46-106,298.54-31,407.40

Finding the Fourth Proportional to 70,875.46, 106,298.54 and 31,407.40

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Solution

The fourth proportional to 70,875.46, 106,298.54 and 31,407.40 is: 47,104.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,875.46 : 106,298.54 = 31,407.40 : x
  2. Step 2: Convert to fraction form
    70,875.46/106,298.54 = 31,407.40/x
  3. Step 3: Cross multiply
    70,875.46x = 106,298.54 × 31,407.40
  4. Step 4: Simplify right side
    70,875.46x = 3,338,560,765.20
  5. Step 5: Solve for x
    x = 3,338,560,765.20/70,875.46
  6. Step 6: Final answer
    x = 47,104.61

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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.