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Finding the Fourth Proportional to 70,126.80, 96,762.15 and 39,495.15

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Solution

The fourth proportional to 70,126.80, 96,762.15 and 39,495.15 is: 54,496.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,126.80 : 96,762.15 = 39,495.15 : x
  2. Step 2: Convert to fraction form
    70,126.80/96,762.15 = 39,495.15/x
  3. Step 3: Cross multiply
    70,126.80x = 96,762.15 × 39,495.15
  4. Step 4: Simplify right side
    70,126.80x = 3,821,635,628.57
  5. Step 5: Solve for x
    x = 3,821,635,628.57/70,126.80
  6. Step 6: Final answer
    x = 54,496.08

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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.