Home / 58,149.72-80,277.09-39,129.50

Finding the Fourth Proportional to 58,149.72, 80,277.09 and 39,129.50

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Solution

The fourth proportional to 58,149.72, 80,277.09 and 39,129.50 is: 54,019.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,149.72 : 80,277.09 = 39,129.50 : x
  2. Step 2: Convert to fraction form
    58,149.72/80,277.09 = 39,129.50/x
  3. Step 3: Cross multiply
    58,149.72x = 80,277.09 × 39,129.50
  4. Step 4: Simplify right side
    58,149.72x = 3,141,202,667.22
  5. Step 5: Solve for x
    x = 3,141,202,667.22/58,149.72
  6. Step 6: Final answer
    x = 54,019.22

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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.