Home / 81,087.66-111,952.44-52,421.13

Finding the Fourth Proportional to 81,087.66, 111,952.44 and 52,421.13

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Solution

The fourth proportional to 81,087.66, 111,952.44 and 52,421.13 is: 72,374.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,087.66 : 111,952.44 = 52,421.13 : x
  2. Step 2: Convert to fraction form
    81,087.66/111,952.44 = 52,421.13/x
  3. Step 3: Cross multiply
    81,087.66x = 111,952.44 × 52,421.13
  4. Step 4: Simplify right side
    81,087.66x = 5,868,673,411.06
  5. Step 5: Solve for x
    x = 5,868,673,411.06/81,087.66
  6. Step 6: Final answer
    x = 72,374.43

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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.