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Finding the Fourth Proportional to 78,337.40, 117,482.34 and 22,173.08

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Solution

The fourth proportional to 78,337.40, 117,482.34 and 22,173.08 is: 33,252.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,337.40 : 117,482.34 = 22,173.08 : x
  2. Step 2: Convert to fraction form
    78,337.40/117,482.34 = 22,173.08/x
  3. Step 3: Cross multiply
    78,337.40x = 117,482.34 × 22,173.08
  4. Step 4: Simplify right side
    78,337.40x = 2,604,945,323.41
  5. Step 5: Solve for x
    x = 2,604,945,323.41/78,337.40
  6. Step 6: Final answer
    x = 33,252.89

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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.