Home / 70,839.15-97,756.63-39,007.36

Finding the Fourth Proportional to 70,839.15, 97,756.63 and 39,007.36

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Solution

The fourth proportional to 70,839.15, 97,756.63 and 39,007.36 is: 53,829.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,839.15 : 97,756.63 = 39,007.36 : x
  2. Step 2: Convert to fraction form
    70,839.15/97,756.63 = 39,007.36/x
  3. Step 3: Cross multiply
    70,839.15x = 97,756.63 × 39,007.36
  4. Step 4: Simplify right side
    70,839.15x = 3,813,228,058.80
  5. Step 5: Solve for x
    x = 3,813,228,058.80/70,839.15
  6. Step 6: Final answer
    x = 53,829.39

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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.