Home / 85,849.24-128,607.80-48,295.20

Finding the Fourth Proportional to 85,849.24, 128,607.80 and 48,295.20

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Solution

The fourth proportional to 85,849.24, 128,607.80 and 48,295.20 is: 72,349.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,849.24 : 128,607.80 = 48,295.20 : x
  2. Step 2: Convert to fraction form
    85,849.24/128,607.80 = 48,295.20/x
  3. Step 3: Cross multiply
    85,849.24x = 128,607.80 × 48,295.20
  4. Step 4: Simplify right side
    85,849.24x = 6,211,139,422.56
  5. Step 5: Solve for x
    x = 6,211,139,422.56/85,849.24
  6. Step 6: Final answer
    x = 72,349.38

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