Home / 56,807.50-85,222.20-25,642.78

Finding the Fourth Proportional to 56,807.50, 85,222.20 and 25,642.78

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Solution

The fourth proportional to 56,807.50, 85,222.20 and 25,642.78 is: 38,469.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,807.50 : 85,222.20 = 25,642.78 : x
  2. Step 2: Convert to fraction form
    56,807.50/85,222.20 = 25,642.78/x
  3. Step 3: Cross multiply
    56,807.50x = 85,222.20 × 25,642.78
  4. Step 4: Simplify right side
    56,807.50x = 2,185,334,125.72
  5. Step 5: Solve for x
    x = 2,185,334,125.72/56,807.50
  6. Step 6: Final answer
    x = 38,469.11

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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.