Home / 70,901.73-106,341.66-31,451.90

Finding the Fourth Proportional to 70,901.73, 106,341.66 and 31,451.90

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Solution

The fourth proportional to 70,901.73, 106,341.66 and 31,451.90 is: 47,172.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,901.73 : 106,341.66 = 31,451.90 : x
  2. Step 2: Convert to fraction form
    70,901.73/106,341.66 = 31,451.90/x
  3. Step 3: Cross multiply
    70,901.73x = 106,341.66 × 31,451.90
  4. Step 4: Simplify right side
    70,901.73x = 3,344,646,724.45
  5. Step 5: Solve for x
    x = 3,344,646,724.45/70,901.73
  6. Step 6: Final answer
    x = 47,172.99

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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.