Home / 57,078.18-85,595.22-19,631.16

Finding the Fourth Proportional to 57,078.18, 85,595.22 and 19,631.16

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Solution

The fourth proportional to 57,078.18, 85,595.22 and 19,631.16 is: 29,439.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,078.18 : 85,595.22 = 19,631.16 : x
  2. Step 2: Convert to fraction form
    57,078.18/85,595.22 = 19,631.16/x
  3. Step 3: Cross multiply
    57,078.18x = 85,595.22 × 19,631.16
  4. Step 4: Simplify right side
    57,078.18x = 1,680,333,459.06
  5. Step 5: Solve for x
    x = 1,680,333,459.06/57,078.18
  6. Step 6: Final answer
    x = 29,439.16

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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.