Home / 85,562.08-128,328.54-23,218

Finding the Fourth Proportional to 85,562.08, 128,328.54 and 23,218

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Solution

The fourth proportional to 85,562.08, 128,328.54 and 23,218 is: 34,823.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,562.08 : 128,328.54 = 23,218 : x
  2. Step 2: Convert to fraction form
    85,562.08/128,328.54 = 23,218/x
  3. Step 3: Cross multiply
    85,562.08x = 128,328.54 × 23,218
  4. Step 4: Simplify right side
    85,562.08x = 2,979,532,041.72
  5. Step 5: Solve for x
    x = 2,979,532,041.72/85,562.08
  6. Step 6: Final answer
    x = 34,823.04

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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.