Home / 66,565.04-91,871.63-39,340.01

Finding the Fourth Proportional to 66,565.04, 91,871.63 and 39,340.01

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Solution

The fourth proportional to 66,565.04, 91,871.63 and 39,340.01 is: 54,296.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,565.04 : 91,871.63 = 39,340.01 : x
  2. Step 2: Convert to fraction form
    66,565.04/91,871.63 = 39,340.01/x
  3. Step 3: Cross multiply
    66,565.04x = 91,871.63 × 39,340.01
  4. Step 4: Simplify right side
    66,565.04x = 3,614,231,170.95
  5. Step 5: Solve for x
    x = 3,614,231,170.95/66,565.04
  6. Step 6: Final answer
    x = 54,296.23

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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.