Home / 71,259.45-98,336.63-39,428.34

Finding the Fourth Proportional to 71,259.45, 98,336.63 and 39,428.34

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Solution

The fourth proportional to 71,259.45, 98,336.63 and 39,428.34 is: 54,410.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,259.45 : 98,336.63 = 39,428.34 : x
  2. Step 2: Convert to fraction form
    71,259.45/98,336.63 = 39,428.34/x
  3. Step 3: Cross multiply
    71,259.45x = 98,336.63 × 39,428.34
  4. Step 4: Simplify right side
    71,259.45x = 3,877,250,641.62
  5. Step 5: Solve for x
    x = 3,877,250,641.62/71,259.45
  6. Step 6: Final answer
    x = 54,410.34

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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.