Home / 71,315.40-98,416.62-42,664.56

Finding the Fourth Proportional to 71,315.40, 98,416.62 and 42,664.56

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Solution

The fourth proportional to 71,315.40, 98,416.62 and 42,664.56 is: 58,877.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,315.40 : 98,416.62 = 42,664.56 : x
  2. Step 2: Convert to fraction form
    71,315.40/98,416.62 = 42,664.56/x
  3. Step 3: Cross multiply
    71,315.40x = 98,416.62 × 42,664.56
  4. Step 4: Simplify right side
    71,315.40x = 4,198,901,788.99
  5. Step 5: Solve for x
    x = 4,198,901,788.99/71,315.40
  6. Step 6: Final answer
    x = 58,877.91

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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.