Home / 71,038.88-98,032.98-39,207.10

Finding the Fourth Proportional to 71,038.88, 98,032.98 and 39,207.10

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Solution

The fourth proportional to 71,038.88, 98,032.98 and 39,207.10 is: 54,105.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,038.88 : 98,032.98 = 39,207.10 : x
  2. Step 2: Convert to fraction form
    71,038.88/98,032.98 = 39,207.10/x
  3. Step 3: Cross multiply
    71,038.88x = 98,032.98 × 39,207.10
  4. Step 4: Simplify right side
    71,038.88x = 3,843,588,850.16
  5. Step 5: Solve for x
    x = 3,843,588,850.16/71,038.88
  6. Step 6: Final answer
    x = 54,105.43

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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.