Home / 70,839.40-97,756.86-39,007.48

Finding the Fourth Proportional to 70,839.40, 97,756.86 and 39,007.48

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Solution

The fourth proportional to 70,839.40, 97,756.86 and 39,007.48 is: 53,829.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,839.40 : 97,756.86 = 39,007.48 : x
  2. Step 2: Convert to fraction form
    70,839.40/97,756.86 = 39,007.48/x
  3. Step 3: Cross multiply
    70,839.40x = 97,756.86 × 39,007.48
  4. Step 4: Simplify right side
    70,839.40x = 3,813,248,761.31
  5. Step 5: Solve for x
    x = 3,813,248,761.31/70,839.40
  6. Step 6: Final answer
    x = 53,829.49

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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.