Home / 70,973.58-97,943.50-39,142.50

Finding the Fourth Proportional to 70,973.58, 97,943.50 and 39,142.50

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Solution

The fourth proportional to 70,973.58, 97,943.50 and 39,142.50 is: 54,016.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,973.58 : 97,943.50 = 39,142.50 : x
  2. Step 2: Convert to fraction form
    70,973.58/97,943.50 = 39,142.50/x
  3. Step 3: Cross multiply
    70,973.58x = 97,943.50 × 39,142.50
  4. Step 4: Simplify right side
    70,973.58x = 3,833,753,448.75
  5. Step 5: Solve for x
    x = 3,833,753,448.75/70,973.58
  6. Step 6: Final answer
    x = 54,016.63

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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.