Home / 52,203.29-78,257.75-18,915.53

Finding the Fourth Proportional to 52,203.29, 78,257.75 and 18,915.53

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Solution

The fourth proportional to 52,203.29, 78,257.75 and 18,915.53 is: 28,356.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,203.29 : 78,257.75 = 18,915.53 : x
  2. Step 2: Convert to fraction form
    52,203.29/78,257.75 = 18,915.53/x
  3. Step 3: Cross multiply
    52,203.29x = 78,257.75 × 18,915.53
  4. Step 4: Simplify right side
    52,203.29x = 1,480,286,331.99
  5. Step 5: Solve for x
    x = 1,480,286,331.99/52,203.29
  6. Step 6: Final answer
    x = 28,356.19

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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.