Home / 65,631.34-98,459.16-21,253.60

Finding the Fourth Proportional to 65,631.34, 98,459.16 and 21,253.60

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Solution

The fourth proportional to 65,631.34, 98,459.16 and 21,253.60 is: 31,884.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,631.34 : 98,459.16 = 21,253.60 : x
  2. Step 2: Convert to fraction form
    65,631.34/98,459.16 = 21,253.60/x
  3. Step 3: Cross multiply
    65,631.34x = 98,459.16 × 21,253.60
  4. Step 4: Simplify right side
    65,631.34x = 2,092,611,602.98
  5. Step 5: Solve for x
    x = 2,092,611,602.98/65,631.34
  6. Step 6: Final answer
    x = 31,884.33

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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.