Home / 55,239.12-76,230.12-30,088.80

Finding the Fourth Proportional to 55,239.12, 76,230.12 and 30,088.80

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Solution

The fourth proportional to 55,239.12, 76,230.12 and 30,088.80 is: 41,522.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,239.12 : 76,230.12 = 30,088.80 : x
  2. Step 2: Convert to fraction form
    55,239.12/76,230.12 = 30,088.80/x
  3. Step 3: Cross multiply
    55,239.12x = 76,230.12 × 30,088.80
  4. Step 4: Simplify right side
    55,239.12x = 2,293,672,834.66
  5. Step 5: Solve for x
    x = 2,293,672,834.66/55,239.12
  6. Step 6: Final answer
    x = 41,522.62

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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.