Home / 98,337.40-135,598.26-66,451

Finding the Fourth Proportional to 98,337.40, 135,598.26 and 66,451

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Solution

The fourth proportional to 98,337.40, 135,598.26 and 66,451 is: 91,629.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,337.40 : 135,598.26 = 66,451 : x
  2. Step 2: Convert to fraction form
    98,337.40/135,598.26 = 66,451/x
  3. Step 3: Cross multiply
    98,337.40x = 135,598.26 × 66,451
  4. Step 4: Simplify right side
    98,337.40x = 9,010,639,975.26
  5. Step 5: Solve for x
    x = 9,010,639,975.26/98,337.40
  6. Step 6: Final answer
    x = 91,629.84

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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.