Home / 74,922.04-103,392.48-40,931

Finding the Fourth Proportional to 74,922.04, 103,392.48 and 40,931

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Solution

The fourth proportional to 74,922.04, 103,392.48 and 40,931 is: 56,484.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,922.04 : 103,392.48 = 40,931 : x
  2. Step 2: Convert to fraction form
    74,922.04/103,392.48 = 40,931/x
  3. Step 3: Cross multiply
    74,922.04x = 103,392.48 × 40,931
  4. Step 4: Simplify right side
    74,922.04x = 4,231,957,598.88
  5. Step 5: Solve for x
    x = 4,231,957,598.88/74,922.04
  6. Step 6: Final answer
    x = 56,484.82

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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.