Home / 58,126.38-80,238.78-39,289.02

Finding the Fourth Proportional to 58,126.38, 80,238.78 and 39,289.02

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Solution

The fourth proportional to 58,126.38, 80,238.78 and 39,289.02 is: 54,235.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,126.38 : 80,238.78 = 39,289.02 : x
  2. Step 2: Convert to fraction form
    58,126.38/80,238.78 = 39,289.02/x
  3. Step 3: Cross multiply
    58,126.38x = 80,238.78 × 39,289.02
  4. Step 4: Simplify right side
    58,126.38x = 3,152,503,032.20
  5. Step 5: Solve for x
    x = 3,152,503,032.20/58,126.38
  6. Step 6: Final answer
    x = 54,235.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.