Home / 55,572.06-76,689.45-30,421.56

Finding the Fourth Proportional to 55,572.06, 76,689.45 and 30,421.56

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Solution

The fourth proportional to 55,572.06, 76,689.45 and 30,421.56 is: 41,981.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,572.06 : 76,689.45 = 30,421.56 : x
  2. Step 2: Convert to fraction form
    55,572.06/76,689.45 = 30,421.56/x
  3. Step 3: Cross multiply
    55,572.06x = 76,689.45 × 30,421.56
  4. Step 4: Simplify right side
    55,572.06x = 2,333,012,704.54
  5. Step 5: Solve for x
    x = 2,333,012,704.54/55,572.06
  6. Step 6: Final answer
    x = 41,981.76

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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.