Home / 66,498.27-91,779.52-39,642.51

Finding the Fourth Proportional to 66,498.27, 91,779.52 and 39,642.51

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Solution

The fourth proportional to 66,498.27, 91,779.52 and 39,642.51 is: 54,713.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,498.27 : 91,779.52 = 39,642.51 : x
  2. Step 2: Convert to fraction form
    66,498.27/91,779.52 = 39,642.51/x
  3. Step 3: Cross multiply
    66,498.27x = 91,779.52 × 39,642.51
  4. Step 4: Simplify right side
    66,498.27x = 3,638,370,539.40
  5. Step 5: Solve for x
    x = 3,638,370,539.40/66,498.27
  6. Step 6: Final answer
    x = 54,713.76

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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.