Home / 66,053.22-91,165.14-39,210.59

Finding the Fourth Proportional to 66,053.22, 91,165.14 and 39,210.59

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Solution

The fourth proportional to 66,053.22, 91,165.14 and 39,210.59 is: 54,117.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,053.22 : 91,165.14 = 39,210.59 : x
  2. Step 2: Convert to fraction form
    66,053.22/91,165.14 = 39,210.59/x
  3. Step 3: Cross multiply
    66,053.22x = 91,165.14 × 39,210.59
  4. Step 4: Simplify right side
    66,053.22x = 3,574,638,471.01
  5. Step 5: Solve for x
    x = 3,574,638,471.01/66,053.22
  6. Step 6: Final answer
    x = 54,117.55

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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.