Home / 56,500.78-77,973.33-31,008.04

Finding the Fourth Proportional to 56,500.78, 77,973.33 and 31,008.04

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Solution

The fourth proportional to 56,500.78, 77,973.33 and 31,008.04 is: 42,792.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,500.78 : 77,973.33 = 31,008.04 : x
  2. Step 2: Convert to fraction form
    56,500.78/77,973.33 = 31,008.04/x
  3. Step 3: Cross multiply
    56,500.78x = 77,973.33 × 31,008.04
  4. Step 4: Simplify right side
    56,500.78x = 2,417,800,135.57
  5. Step 5: Solve for x
    x = 2,417,800,135.57/56,500.78
  6. Step 6: Final answer
    x = 42,792.33

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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.