Home / 65,426.28-98,140.32-18,679.08

Finding the Fourth Proportional to 65,426.28, 98,140.32 and 18,679.08

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Solution

The fourth proportional to 65,426.28, 98,140.32 and 18,679.08 is: 28,018.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,426.28 : 98,140.32 = 18,679.08 : x
  2. Step 2: Convert to fraction form
    65,426.28/98,140.32 = 18,679.08/x
  3. Step 3: Cross multiply
    65,426.28x = 98,140.32 × 18,679.08
  4. Step 4: Simplify right side
    65,426.28x = 1,833,170,888.51
  5. Step 5: Solve for x
    x = 1,833,170,888.51/65,426.28
  6. Step 6: Final answer
    x = 28,018.88

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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.