Home / 99,605.40-149,430.30-36,424.12

Finding the Fourth Proportional to 99,605.40, 149,430.30 and 36,424.12

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Solution

The fourth proportional to 99,605.40, 149,430.30 and 36,424.12 is: 54,644.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,605.40 : 149,430.30 = 36,424.12 : x
  2. Step 2: Convert to fraction form
    99,605.40/149,430.30 = 36,424.12/x
  3. Step 3: Cross multiply
    99,605.40x = 149,430.30 × 36,424.12
  4. Step 4: Simplify right side
    99,605.40x = 5,442,867,428.97
  5. Step 5: Solve for x
    x = 5,442,867,428.97/99,605.40
  6. Step 6: Final answer
    x = 54,644.30

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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.