Home / 57,430.12-85,983.36-43,345.34

Finding the Fourth Proportional to 57,430.12, 85,983.36 and 43,345.34

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Solution

The fourth proportional to 57,430.12, 85,983.36 and 43,345.34 is: 64,895.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,430.12 : 85,983.36 = 43,345.34 : x
  2. Step 2: Convert to fraction form
    57,430.12/85,983.36 = 43,345.34/x
  3. Step 3: Cross multiply
    57,430.12x = 85,983.36 × 43,345.34
  4. Step 4: Simplify right side
    57,430.12x = 3,726,977,973.54
  5. Step 5: Solve for x
    x = 3,726,977,973.54/57,430.12
  6. Step 6: Final answer
    x = 64,895.88

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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.