Home / 56,041.88-77,337.78-30,891.80

Finding the Fourth Proportional to 56,041.88, 77,337.78 and 30,891.80

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Solution

The fourth proportional to 56,041.88, 77,337.78 and 30,891.80 is: 42,630.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,041.88 : 77,337.78 = 30,891.80 : x
  2. Step 2: Convert to fraction form
    56,041.88/77,337.78 = 30,891.80/x
  3. Step 3: Cross multiply
    56,041.88x = 77,337.78 × 30,891.80
  4. Step 4: Simplify right side
    56,041.88x = 2,389,103,232.20
  5. Step 5: Solve for x
    x = 2,389,103,232.20/56,041.88
  6. Step 6: Final answer
    x = 42,630.68

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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.