Home / 55,572.24-76,689.16-30,421.68

Finding the Fourth Proportional to 55,572.24, 76,689.16 and 30,421.68

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Solution

The fourth proportional to 55,572.24, 76,689.16 and 30,421.68 is: 41,981.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,572.24 : 76,689.16 = 30,421.68 : x
  2. Step 2: Convert to fraction form
    55,572.24/76,689.16 = 30,421.68/x
  3. Step 3: Cross multiply
    55,572.24x = 76,689.16 × 30,421.68
  4. Step 4: Simplify right side
    55,572.24x = 2,333,013,084.99
  5. Step 5: Solve for x
    x = 2,333,013,084.99/55,572.24
  6. Step 6: Final answer
    x = 41,981.63

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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.