Home / 55,457.88-76,526.20-31,579.60

Finding the Fourth Proportional to 55,457.88, 76,526.20 and 31,579.60

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Solution

The fourth proportional to 55,457.88, 76,526.20 and 31,579.60 is: 43,576.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,457.88 : 76,526.20 = 31,579.60 : x
  2. Step 2: Convert to fraction form
    55,457.88/76,526.20 = 31,579.60/x
  3. Step 3: Cross multiply
    55,457.88x = 76,526.20 × 31,579.60
  4. Step 4: Simplify right side
    55,457.88x = 2,416,666,785.52
  5. Step 5: Solve for x
    x = 2,416,666,785.52/55,457.88
  6. Step 6: Final answer
    x = 43,576.62

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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.