Home / 99,605.28-137,451.80-54,282.34

Finding the Fourth Proportional to 99,605.28, 137,451.80 and 54,282.34

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Solution

The fourth proportional to 99,605.28, 137,451.80 and 54,282.34 is: 74,907.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,605.28 : 137,451.80 = 54,282.34 : x
  2. Step 2: Convert to fraction form
    99,605.28/137,451.80 = 54,282.34/x
  3. Step 3: Cross multiply
    99,605.28x = 137,451.80 × 54,282.34
  4. Step 4: Simplify right side
    99,605.28x = 7,461,205,341.21
  5. Step 5: Solve for x
    x = 7,461,205,341.21/99,605.28
  6. Step 6: Final answer
    x = 74,907.73

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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.