Home / 66,087.45-91,241.96-45,426.51

Finding the Fourth Proportional to 66,087.45, 91,241.96 and 45,426.51

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Solution

The fourth proportional to 66,087.45, 91,241.96 and 45,426.51 is: 62,716.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,087.45 : 91,241.96 = 45,426.51 : x
  2. Step 2: Convert to fraction form
    66,087.45/91,241.96 = 45,426.51/x
  3. Step 3: Cross multiply
    66,087.45x = 91,241.96 × 45,426.51
  4. Step 4: Simplify right side
    66,087.45x = 4,144,803,808.36
  5. Step 5: Solve for x
    x = 4,144,803,808.36/66,087.45
  6. Step 6: Final answer
    x = 62,716.96

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1.5x scale

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.