Home / 69,712.35-96,220.53-39,515.68

Finding the Fourth Proportional to 69,712.35, 96,220.53 and 39,515.68

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Solution

The fourth proportional to 69,712.35, 96,220.53 and 39,515.68 is: 54,541.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,712.35 : 96,220.53 = 39,515.68 : x
  2. Step 2: Convert to fraction form
    69,712.35/96,220.53 = 39,515.68/x
  3. Step 3: Cross multiply
    69,712.35x = 96,220.53 × 39,515.68
  4. Step 4: Simplify right side
    69,712.35x = 3,802,219,672.91
  5. Step 5: Solve for x
    x = 3,802,219,672.91/69,712.35
  6. Step 6: Final answer
    x = 54,541.55

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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.