Home / 75,400.10-103,994.47-51,219.71

Finding the Fourth Proportional to 75,400.10, 103,994.47 and 51,219.71

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Solution

The fourth proportional to 75,400.10, 103,994.47 and 51,219.71 is: 70,644.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,400.10 : 103,994.47 = 51,219.71 : x
  2. Step 2: Convert to fraction form
    75,400.10/103,994.47 = 51,219.71/x
  3. Step 3: Cross multiply
    75,400.10x = 103,994.47 × 51,219.71
  4. Step 4: Simplify right side
    75,400.10x = 5,326,565,946.98
  5. Step 5: Solve for x
    x = 5,326,565,946.98/75,400.10
  6. Step 6: Final answer
    x = 70,644.02

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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.