Home / 78,035.34-117,065.16-25,432.62

Finding the Fourth Proportional to 78,035.34, 117,065.16 and 25,432.62

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Solution

The fourth proportional to 78,035.34, 117,065.16 and 25,432.62 is: 38,152.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,035.34 : 117,065.16 = 25,432.62 : x
  2. Step 2: Convert to fraction form
    78,035.34/117,065.16 = 25,432.62/x
  3. Step 3: Cross multiply
    78,035.34x = 117,065.16 × 25,432.62
  4. Step 4: Simplify right side
    78,035.34x = 2,977,273,729.52
  5. Step 5: Solve for x
    x = 2,977,273,729.52/78,035.34
  6. Step 6: Final answer
    x = 38,152.89

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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.