Home / 78,459.33-117,688.99-25,151.20

Finding the Fourth Proportional to 78,459.33, 117,688.99 and 25,151.20

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Solution

The fourth proportional to 78,459.33, 117,688.99 and 25,151.20 is: 37,726.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,459.33 : 117,688.99 = 25,151.20 : x
  2. Step 2: Convert to fraction form
    78,459.33/117,688.99 = 25,151.20/x
  3. Step 3: Cross multiply
    78,459.33x = 117,688.99 × 25,151.20
  4. Step 4: Simplify right side
    78,459.33x = 2,960,019,325.29
  5. Step 5: Solve for x
    x = 2,960,019,325.29/78,459.33
  6. Step 6: Final answer
    x = 37,726.80

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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.