Home / 56,117.76-77,442.24-30,968.80

Finding the Fourth Proportional to 56,117.76, 77,442.24 and 30,968.80

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Solution

The fourth proportional to 56,117.76, 77,442.24 and 30,968.80 is: 42,736.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,117.76 : 77,442.24 = 30,968.80 : x
  2. Step 2: Convert to fraction form
    56,117.76/77,442.24 = 30,968.80/x
  3. Step 3: Cross multiply
    56,117.76x = 77,442.24 × 30,968.80
  4. Step 4: Simplify right side
    56,117.76x = 2,398,293,242.11
  5. Step 5: Solve for x
    x = 2,398,293,242.11/56,117.76
  6. Step 6: Final answer
    x = 42,736.80

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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.