Home / 70,039.90-96,663.36-39,829.76

Finding the Fourth Proportional to 70,039.90, 96,663.36 and 39,829.76

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Solution

The fourth proportional to 70,039.90, 96,663.36 and 39,829.76 is: 54,969.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,039.90 : 96,663.36 = 39,829.76 : x
  2. Step 2: Convert to fraction form
    70,039.90/96,663.36 = 39,829.76/x
  3. Step 3: Cross multiply
    70,039.90x = 96,663.36 × 39,829.76
  4. Step 4: Simplify right side
    70,039.90x = 3,850,078,671.25
  5. Step 5: Solve for x
    x = 3,850,078,671.25/70,039.90
  6. Step 6: Final answer
    x = 54,969.79

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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.