Home / 56,403-77,836.68-31,253.04

Finding the Fourth Proportional to 56,403, 77,836.68 and 31,253.04

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Solution

The fourth proportional to 56,403, 77,836.68 and 31,253.04 is: 43,129.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,403 : 77,836.68 = 31,253.04 : x
  2. Step 2: Convert to fraction form
    56,403/77,836.68 = 31,253.04/x
  3. Step 3: Cross multiply
    56,403x = 77,836.68 × 31,253.04
  4. Step 4: Simplify right side
    56,403x = 2,432,632,873.51
  5. Step 5: Solve for x
    x = 2,432,632,873.51/56,403
  6. Step 6: Final answer
    x = 43,129.49

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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.