Home / 65,390.24-98,076-21,011.16

Finding the Fourth Proportional to 65,390.24, 98,076 and 21,011.16

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Solution

The fourth proportional to 65,390.24, 98,076 and 21,011.16 is: 31,513.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,390.24 : 98,076 = 21,011.16 : x
  2. Step 2: Convert to fraction form
    65,390.24/98,076 = 21,011.16/x
  3. Step 3: Cross multiply
    65,390.24x = 98,076 × 21,011.16
  4. Step 4: Simplify right side
    65,390.24x = 2,060,690,528.16
  5. Step 5: Solve for x
    x = 2,060,690,528.16/65,390.24
  6. Step 6: Final answer
    x = 31,513.73

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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.