Home / 55,624.28-76,761.60-30,130.72

Finding the Fourth Proportional to 55,624.28, 76,761.60 and 30,130.72

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Solution

The fourth proportional to 55,624.28, 76,761.60 and 30,130.72 is: 41,580.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,624.28 : 76,761.60 = 30,130.72 : x
  2. Step 2: Convert to fraction form
    55,624.28/76,761.60 = 30,130.72/x
  3. Step 3: Cross multiply
    55,624.28x = 76,761.60 × 30,130.72
  4. Step 4: Simplify right side
    55,624.28x = 2,312,882,276.35
  5. Step 5: Solve for x
    x = 2,312,882,276.35/55,624.28
  6. Step 6: Final answer
    x = 41,580.44

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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.