Home / 52,603.32-78,864.66-21,418.68

Finding the Fourth Proportional to 52,603.32, 78,864.66 and 21,418.68

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Solution

The fourth proportional to 52,603.32, 78,864.66 and 21,418.68 is: 32,111.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,603.32 : 78,864.66 = 21,418.68 : x
  2. Step 2: Convert to fraction form
    52,603.32/78,864.66 = 21,418.68/x
  3. Step 3: Cross multiply
    52,603.32x = 78,864.66 × 21,418.68
  4. Step 4: Simplify right side
    52,603.32x = 1,689,176,915.85
  5. Step 5: Solve for x
    x = 1,689,176,915.85/52,603.32
  6. Step 6: Final answer
    x = 32,111.60

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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.