Home / 57,270.16-85,884.65-19,820.07

Finding the Fourth Proportional to 57,270.16, 85,884.65 and 19,820.07

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Solution

The fourth proportional to 57,270.16, 85,884.65 and 19,820.07 is: 29,722.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,270.16 : 85,884.65 = 19,820.07 : x
  2. Step 2: Convert to fraction form
    57,270.16/85,884.65 = 19,820.07/x
  3. Step 3: Cross multiply
    57,270.16x = 85,884.65 × 19,820.07
  4. Step 4: Simplify right side
    57,270.16x = 1,702,239,675.83
  5. Step 5: Solve for x
    x = 1,702,239,675.83/57,270.16
  6. Step 6: Final answer
    x = 29,722.98

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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.