Home / 99,471.81-137,271.10-54,150.12

Finding the Fourth Proportional to 99,471.81, 137,271.10 and 54,150.12

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Solution

The fourth proportional to 99,471.81, 137,271.10 and 54,150.12 is: 74,727.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,471.81 : 137,271.10 = 54,150.12 : x
  2. Step 2: Convert to fraction form
    99,471.81/137,271.10 = 54,150.12/x
  3. Step 3: Cross multiply
    99,471.81x = 137,271.10 × 54,150.12
  4. Step 4: Simplify right side
    99,471.81x = 7,433,246,537.53
  5. Step 5: Solve for x
    x = 7,433,246,537.53/99,471.81
  6. Step 6: Final answer
    x = 74,727.17

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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.