Home / 56,301.69-77,697.47-31,151.61

Finding the Fourth Proportional to 56,301.69, 77,697.47 and 31,151.61

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Solution

The fourth proportional to 56,301.69, 77,697.47 and 31,151.61 is: 42,989.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,301.69 : 77,697.47 = 31,151.61 : x
  2. Step 2: Convert to fraction form
    56,301.69/77,697.47 = 31,151.61/x
  3. Step 3: Cross multiply
    56,301.69x = 77,697.47 × 31,151.61
  4. Step 4: Simplify right side
    56,301.69x = 2,420,401,127.67
  5. Step 5: Solve for x
    x = 2,420,401,127.67/56,301.69
  6. Step 6: Final answer
    x = 42,989.85

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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.