Home / 60,999.30-91,426.05-31,401.90

Finding the Fourth Proportional to 60,999.30, 91,426.05 and 31,401.90

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Solution

The fourth proportional to 60,999.30, 91,426.05 and 31,401.90 is: 47,065.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,999.30 : 91,426.05 = 31,401.90 : x
  2. Step 2: Convert to fraction form
    60,999.30/91,426.05 = 31,401.90/x
  3. Step 3: Cross multiply
    60,999.30x = 91,426.05 × 31,401.90
  4. Step 4: Simplify right side
    60,999.30x = 2,870,951,679.50
  5. Step 5: Solve for x
    x = 2,870,951,679.50/60,999.30
  6. Step 6: Final answer
    x = 47,065.32

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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.