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Finding the Fourth Proportional to 70,502, 97,296.60 and 40,703.60

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Solution

The fourth proportional to 70,502, 97,296.60 and 40,703.60 is: 56,173.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,502 : 97,296.60 = 40,703.60 : x
  2. Step 2: Convert to fraction form
    70,502/97,296.60 = 40,703.60/x
  3. Step 3: Cross multiply
    70,502x = 97,296.60 × 40,703.60
  4. Step 4: Simplify right side
    70,502x = 3,960,321,887.76
  5. Step 5: Solve for x
    x = 3,960,321,887.76/70,502
  6. Step 6: Final answer
    x = 56,173.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.