Home / 55,061.70-75,986.82-31,191.84

Finding the Fourth Proportional to 55,061.70, 75,986.82 and 31,191.84

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Solution

The fourth proportional to 55,061.70, 75,986.82 and 31,191.84 is: 43,045.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,061.70 : 75,986.82 = 31,191.84 : x
  2. Step 2: Convert to fraction form
    55,061.70/75,986.82 = 31,191.84/x
  3. Step 3: Cross multiply
    55,061.70x = 75,986.82 × 31,191.84
  4. Step 4: Simplify right side
    55,061.70x = 2,370,168,731.55
  5. Step 5: Solve for x
    x = 2,370,168,731.55/55,061.70
  6. Step 6: Final answer
    x = 43,045.69

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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.