Home / 52,219.77-78,305.36-18,938.49

Finding the Fourth Proportional to 52,219.77, 78,305.36 and 18,938.49

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Solution

The fourth proportional to 52,219.77, 78,305.36 and 18,938.49 is: 28,398.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,219.77 : 78,305.36 = 18,938.49 : x
  2. Step 2: Convert to fraction form
    52,219.77/78,305.36 = 18,938.49/x
  3. Step 3: Cross multiply
    52,219.77x = 78,305.36 × 18,938.49
  4. Step 4: Simplify right side
    52,219.77x = 1,482,985,182.61
  5. Step 5: Solve for x
    x = 1,482,985,182.61/52,219.77
  6. Step 6: Final answer
    x = 28,398.92

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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.