Home / 99,628.10-137,485.00-54,306.47

Finding the Fourth Proportional to 99,628.10, 137,485.00 and 54,306.47

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Solution

The fourth proportional to 99,628.10, 137,485.00 and 54,306.47 is: 74,941.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,628.10 : 137,485.00 = 54,306.47 : x
  2. Step 2: Convert to fraction form
    99,628.10/137,485.00 = 54,306.47/x
  3. Step 3: Cross multiply
    99,628.10x = 137,485.00 × 54,306.47
  4. Step 4: Simplify right side
    99,628.10x = 7,466,324,068.99
  5. Step 5: Solve for x
    x = 7,466,324,068.99/99,628.10
  6. Step 6: Final answer
    x = 74,941.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.