Home / 66,064.90-91,155.24-39,216.36

Finding the Fourth Proportional to 66,064.90, 91,155.24 and 39,216.36

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Solution

The fourth proportional to 66,064.90, 91,155.24 and 39,216.36 is: 54,110.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,064.90 : 91,155.24 = 39,216.36 : x
  2. Step 2: Convert to fraction form
    66,064.90/91,155.24 = 39,216.36/x
  3. Step 3: Cross multiply
    66,064.90x = 91,155.24 × 39,216.36
  4. Step 4: Simplify right side
    66,064.90x = 3,574,776,707.73
  5. Step 5: Solve for x
    x = 3,574,776,707.73/66,064.90
  6. Step 6: Final answer
    x = 54,110.08

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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.