Home / 57,715.08-86,565.06-18,272.40

Finding the Fourth Proportional to 57,715.08, 86,565.06 and 18,272.40

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Solution

The fourth proportional to 57,715.08, 86,565.06 and 18,272.40 is: 27,406.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,715.08 : 86,565.06 = 18,272.40 : x
  2. Step 2: Convert to fraction form
    57,715.08/86,565.06 = 18,272.40/x
  3. Step 3: Cross multiply
    57,715.08x = 86,565.06 × 18,272.40
  4. Step 4: Simplify right side
    57,715.08x = 1,581,751,402.34
  5. Step 5: Solve for x
    x = 1,581,751,402.34/57,715.08
  6. Step 6: Final answer
    x = 27,406.21

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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.