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Finding the Fourth Proportional to 66,525.94, 91,805.80 and 45,342.21

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Solution

The fourth proportional to 66,525.94, 91,805.80 and 45,342.21 is: 62,572.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,525.94 : 91,805.80 = 45,342.21 : x
  2. Step 2: Convert to fraction form
    66,525.94/91,805.80 = 45,342.21/x
  3. Step 3: Cross multiply
    66,525.94x = 91,805.80 × 45,342.21
  4. Step 4: Simplify right side
    66,525.94x = 4,162,677,749.46
  5. Step 5: Solve for x
    x = 4,162,677,749.46/66,525.94
  6. Step 6: Final answer
    x = 62,572.25

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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.