Home / 55,571.57-76,688.76-30,421.07

Finding the Fourth Proportional to 55,571.57, 76,688.76 and 30,421.07

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Solution

The fourth proportional to 55,571.57, 76,688.76 and 30,421.07 is: 41,981.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,571.57 : 76,688.76 = 30,421.07 : x
  2. Step 2: Convert to fraction form
    55,571.57/76,688.76 = 30,421.07/x
  3. Step 3: Cross multiply
    55,571.57x = 76,688.76 × 30,421.07
  4. Step 4: Simplify right side
    55,571.57x = 2,332,953,600.62
  5. Step 5: Solve for x
    x = 2,332,953,600.62/55,571.57
  6. Step 6: Final answer
    x = 41,981.07

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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.