Home / 70,869.46-106,289.58-31,401.40

Finding the Fourth Proportional to 70,869.46, 106,289.58 and 31,401.40

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Solution

The fourth proportional to 70,869.46, 106,289.58 and 31,401.40 is: 47,095.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,869.46 : 106,289.58 = 31,401.40 : x
  2. Step 2: Convert to fraction form
    70,869.46/106,289.58 = 31,401.40/x
  3. Step 3: Cross multiply
    70,869.46x = 106,289.58 × 31,401.40
  4. Step 4: Simplify right side
    70,869.46x = 3,337,641,617.41
  5. Step 5: Solve for x
    x = 3,337,641,617.41/70,869.46
  6. Step 6: Final answer
    x = 47,095.63

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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.