Home / 65,935.32-98,918.54-21,561.90

Finding the Fourth Proportional to 65,935.32, 98,918.54 and 21,561.90

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Solution

The fourth proportional to 65,935.32, 98,918.54 and 21,561.90 is: 32,347.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,935.32 : 98,918.54 = 21,561.90 : x
  2. Step 2: Convert to fraction form
    65,935.32/98,918.54 = 21,561.90/x
  3. Step 3: Cross multiply
    65,935.32x = 98,918.54 × 21,561.90
  4. Step 4: Simplify right side
    65,935.32x = 2,132,871,667.63
  5. Step 5: Solve for x
    x = 2,132,871,667.63/65,935.32
  6. Step 6: Final answer
    x = 32,347.94

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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.