Home / 56,950.40-85,425.60-51,312.80

Finding the Fourth Proportional to 56,950.40, 85,425.60 and 51,312.80

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Solution

The fourth proportional to 56,950.40, 85,425.60 and 51,312.80 is: 76,969.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,950.40 : 85,425.60 = 51,312.80 : x
  2. Step 2: Convert to fraction form
    56,950.40/85,425.60 = 51,312.80/x
  3. Step 3: Cross multiply
    56,950.40x = 85,425.60 × 51,312.80
  4. Step 4: Simplify right side
    56,950.40x = 4,383,426,727.68
  5. Step 5: Solve for x
    x = 4,383,426,727.68/56,950.40
  6. Step 6: Final answer
    x = 76,969.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.