Home / 57,045.96-85,577.40-19,615.68

Finding the Fourth Proportional to 57,045.96, 85,577.40 and 19,615.68

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Solution

The fourth proportional to 57,045.96, 85,577.40 and 19,615.68 is: 29,426.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,045.96 : 85,577.40 = 19,615.68 : x
  2. Step 2: Convert to fraction form
    57,045.96/85,577.40 = 19,615.68/x
  3. Step 3: Cross multiply
    57,045.96x = 85,577.40 × 19,615.68
  4. Step 4: Simplify right side
    57,045.96x = 1,678,658,893.63
  5. Step 5: Solve for x
    x = 1,678,658,893.63/57,045.96
  6. Step 6: Final answer
    x = 29,426.43

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1.5x scale

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.