Home / 75,281.32-112,940.48-53,137.95

Finding the Fourth Proportional to 75,281.32, 112,940.48 and 53,137.95

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Solution

The fourth proportional to 75,281.32, 112,940.48 and 53,137.95 is: 79,719.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,281.32 : 112,940.48 = 53,137.95 : x
  2. Step 2: Convert to fraction form
    75,281.32/112,940.48 = 53,137.95/x
  3. Step 3: Cross multiply
    75,281.32x = 112,940.48 × 53,137.95
  4. Step 4: Simplify right side
    75,281.32x = 6,001,425,579.22
  5. Step 5: Solve for x
    x = 6,001,425,579.22/75,281.32
  6. Step 6: Final answer
    x = 79,719.98

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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.