Home / 81,045.96-111,849.06-45,242.96

Finding the Fourth Proportional to 81,045.96, 111,849.06 and 45,242.96

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Solution

The fourth proportional to 81,045.96, 111,849.06 and 45,242.96 is: 62,438.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,045.96 : 111,849.06 = 45,242.96 : x
  2. Step 2: Convert to fraction form
    81,045.96/111,849.06 = 45,242.96/x
  3. Step 3: Cross multiply
    81,045.96x = 111,849.06 × 45,242.96
  4. Step 4: Simplify right side
    81,045.96x = 5,060,382,547.62
  5. Step 5: Solve for x
    x = 5,060,382,547.62/81,045.96
  6. Step 6: Final answer
    x = 62,438.43

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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.