Home / 66,501.23-91,759.13-39,646.22

Finding the Fourth Proportional to 66,501.23, 91,759.13 and 39,646.22

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Solution

The fourth proportional to 66,501.23, 91,759.13 and 39,646.22 is: 54,704.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,501.23 : 91,759.13 = 39,646.22 : x
  2. Step 2: Convert to fraction form
    66,501.23/91,759.13 = 39,646.22/x
  3. Step 3: Cross multiply
    66,501.23x = 91,759.13 × 39,646.22
  4. Step 4: Simplify right side
    66,501.23x = 3,637,902,654.99
  5. Step 5: Solve for x
    x = 3,637,902,654.99/66,501.23
  6. Step 6: Final answer
    x = 54,704.29

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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.