Home / 56,161.88-77,503.59-30,668.52

Finding the Fourth Proportional to 56,161.88, 77,503.59 and 30,668.52

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Solution

The fourth proportional to 56,161.88, 77,503.59 and 30,668.52 is: 42,322.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,161.88 : 77,503.59 = 30,668.52 : x
  2. Step 2: Convert to fraction form
    56,161.88/77,503.59 = 30,668.52/x
  3. Step 3: Cross multiply
    56,161.88x = 77,503.59 × 30,668.52
  4. Step 4: Simplify right side
    56,161.88x = 2,376,920,399.99
  5. Step 5: Solve for x
    x = 2,376,920,399.99/56,161.88
  6. Step 6: Final answer
    x = 42,322.66

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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.