Home / 55,212.63-76,191.77-30,683.36

Finding the Fourth Proportional to 55,212.63, 76,191.77 and 30,683.36

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Solution

The fourth proportional to 55,212.63, 76,191.77 and 30,683.36 is: 42,342.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,212.63 : 76,191.77 = 30,683.36 : x
  2. Step 2: Convert to fraction form
    55,212.63/76,191.77 = 30,683.36/x
  3. Step 3: Cross multiply
    55,212.63x = 76,191.77 × 30,683.36
  4. Step 4: Simplify right side
    55,212.63x = 2,337,819,507.95
  5. Step 5: Solve for x
    x = 2,337,819,507.95/55,212.63
  6. Step 6: Final answer
    x = 42,342.11

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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.