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Finding the Fourth Proportional to 65,341.40, 97,817.70 and 43,179.80

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Solution

The fourth proportional to 65,341.40, 97,817.70 and 43,179.80 is: 64,641.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,341.40 : 97,817.70 = 43,179.80 : x
  2. Step 2: Convert to fraction form
    65,341.40/97,817.70 = 43,179.80/x
  3. Step 3: Cross multiply
    65,341.40x = 97,817.70 × 43,179.80
  4. Step 4: Simplify right side
    65,341.40x = 4,223,748,722.46
  5. Step 5: Solve for x
    x = 4,223,748,722.46/65,341.40
  6. Step 6: Final answer
    x = 64,641.23

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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.