Home / 55,571.63-76,688.84-30,421.13

Finding the Fourth Proportional to 55,571.63, 76,688.84 and 30,421.13

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Solution

The fourth proportional to 55,571.63, 76,688.84 and 30,421.13 is: 41,981.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,571.63 : 76,688.84 = 30,421.13 : x
  2. Step 2: Convert to fraction form
    55,571.63/76,688.84 = 30,421.13/x
  3. Step 3: Cross multiply
    55,571.63x = 76,688.84 × 30,421.13
  4. Step 4: Simplify right side
    55,571.63x = 2,332,960,863.80
  5. Step 5: Solve for x
    x = 2,332,960,863.80/55,571.63
  6. Step 6: Final answer
    x = 41,981.15

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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.