Home / 55,457.78-76,522.89-31,584.90

Finding the Fourth Proportional to 55,457.78, 76,522.89 and 31,584.90

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Solution

The fourth proportional to 55,457.78, 76,522.89 and 31,584.90 is: 43,582.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,457.78 : 76,522.89 = 31,584.90 : x
  2. Step 2: Convert to fraction form
    55,457.78/76,522.89 = 31,584.90/x
  3. Step 3: Cross multiply
    55,457.78x = 76,522.89 × 31,584.90
  4. Step 4: Simplify right side
    55,457.78x = 2,416,967,828.36
  5. Step 5: Solve for x
    x = 2,416,967,828.36/55,457.78
  6. Step 6: Final answer
    x = 43,582.12

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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.