Home / 71,389.53-98,519.63-39,560.49

Finding the Fourth Proportional to 71,389.53, 98,519.63 and 39,560.49

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Solution

The fourth proportional to 71,389.53, 98,519.63 and 39,560.49 is: 54,594.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,389.53 : 98,519.63 = 39,560.49 : x
  2. Step 2: Convert to fraction form
    71,389.53/98,519.63 = 39,560.49/x
  3. Step 3: Cross multiply
    71,389.53x = 98,519.63 × 39,560.49
  4. Step 4: Simplify right side
    71,389.53x = 3,897,484,639.62
  5. Step 5: Solve for x
    x = 3,897,484,639.62/71,389.53
  6. Step 6: Final answer
    x = 54,594.63

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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.