Home / 85,560.22-128,362.19-35,623.72

Finding the Fourth Proportional to 85,560.22, 128,362.19 and 35,623.72

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Solution

The fourth proportional to 85,560.22, 128,362.19 and 35,623.72 is: 53,444.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,560.22 : 128,362.19 = 35,623.72 : x
  2. Step 2: Convert to fraction form
    85,560.22/128,362.19 = 35,623.72/x
  3. Step 3: Cross multiply
    85,560.22x = 128,362.19 × 35,623.72
  4. Step 4: Simplify right side
    85,560.22x = 4,572,738,715.15
  5. Step 5: Solve for x
    x = 4,572,738,715.15/85,560.22
  6. Step 6: Final answer
    x = 53,444.68

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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.