Home / 76,140.48-113,566.88-71,750

Finding the Fourth Proportional to 76,140.48, 113,566.88 and 71,750

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Solution

The fourth proportional to 76,140.48, 113,566.88 and 71,750 is: 107,018.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,140.48 : 113,566.88 = 71,750 : x
  2. Step 2: Convert to fraction form
    76,140.48/113,566.88 = 71,750/x
  3. Step 3: Cross multiply
    76,140.48x = 113,566.88 × 71,750
  4. Step 4: Simplify right side
    76,140.48x = 8,148,423,640
  5. Step 5: Solve for x
    x = 8,148,423,640/76,140.48
  6. Step 6: Final answer
    x = 107,018.29

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.