Home / 71,664.19-98,897.08-39,399.35

Finding the Fourth Proportional to 71,664.19, 98,897.08 and 39,399.35

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Solution

The fourth proportional to 71,664.19, 98,897.08 and 39,399.35 is: 54,371.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,664.19 : 98,897.08 = 39,399.35 : x
  2. Step 2: Convert to fraction form
    71,664.19/98,897.08 = 39,399.35/x
  3. Step 3: Cross multiply
    71,664.19x = 98,897.08 × 39,399.35
  4. Step 4: Simplify right side
    71,664.19x = 3,896,480,817.64
  5. Step 5: Solve for x
    x = 3,896,480,817.64/71,664.19
  6. Step 6: Final answer
    x = 54,371.38

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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.