Home / 75,278.16-112,890.51-54,154.58

Finding the Fourth Proportional to 75,278.16, 112,890.51 and 54,154.58

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Solution

The fourth proportional to 75,278.16, 112,890.51 and 54,154.58 is: 81,212.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,278.16 : 112,890.51 = 54,154.58 : x
  2. Step 2: Convert to fraction form
    75,278.16/112,890.51 = 54,154.58/x
  3. Step 3: Cross multiply
    75,278.16x = 112,890.51 × 54,154.58
  4. Step 4: Simplify right side
    75,278.16x = 6,113,537,590.58
  5. Step 5: Solve for x
    x = 6,113,537,590.58/75,278.16
  6. Step 6: Final answer
    x = 81,212.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.