Home / 99,605.57-137,451.67-54,282.59

Finding the Fourth Proportional to 99,605.57, 137,451.67 and 54,282.59

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Solution

The fourth proportional to 99,605.57, 137,451.67 and 54,282.59 is: 74,907.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,605.57 : 137,451.67 = 54,282.59 : x
  2. Step 2: Convert to fraction form
    99,605.57/137,451.67 = 54,282.59/x
  3. Step 3: Cross multiply
    99,605.57x = 137,451.67 × 54,282.59
  4. Step 4: Simplify right side
    99,605.57x = 7,461,232,339.90
  5. Step 5: Solve for x
    x = 7,461,232,339.90/99,605.57
  6. Step 6: Final answer
    x = 74,907.79

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1.5x scale

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.