Home / 71,675.82-98,916.01-39,845.25

Finding the Fourth Proportional to 71,675.82, 98,916.01 and 39,845.25

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Solution

The fourth proportional to 71,675.82, 98,916.01 and 39,845.25 is: 54,988.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,675.82 : 98,916.01 = 39,845.25 : x
  2. Step 2: Convert to fraction form
    71,675.82/98,916.01 = 39,845.25/x
  3. Step 3: Cross multiply
    71,675.82x = 98,916.01 × 39,845.25
  4. Step 4: Simplify right side
    71,675.82x = 3,941,333,047.84
  5. Step 5: Solve for x
    x = 3,941,333,047.84/71,675.82
  6. Step 6: Final answer
    x = 54,988.32

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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.