Home / 99,605.43-137,451.48-54,282.45

Finding the Fourth Proportional to 99,605.43, 137,451.48 and 54,282.45

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Solution

The fourth proportional to 99,605.43, 137,451.48 and 54,282.45 is: 74,907.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,605.43 : 137,451.48 = 54,282.45 : x
  2. Step 2: Convert to fraction form
    99,605.43/137,451.48 = 54,282.45/x
  3. Step 3: Cross multiply
    99,605.43x = 137,451.48 × 54,282.45
  4. Step 4: Simplify right side
    99,605.43x = 7,461,203,090.53
  5. Step 5: Solve for x
    x = 7,461,203,090.53/99,605.43
  6. Step 6: Final answer
    x = 74,907.59

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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.