Home / 70,969.14-97,937.40-39,138.72

Finding the Fourth Proportional to 70,969.14, 97,937.40 and 39,138.72

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Solution

The fourth proportional to 70,969.14, 97,937.40 and 39,138.72 is: 54,011.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,969.14 : 97,937.40 = 39,138.72 : x
  2. Step 2: Convert to fraction form
    70,969.14/97,937.40 = 39,138.72/x
  3. Step 3: Cross multiply
    70,969.14x = 97,937.40 × 39,138.72
  4. Step 4: Simplify right side
    70,969.14x = 3,833,144,476.13
  5. Step 5: Solve for x
    x = 3,833,144,476.13/70,969.14
  6. Step 6: Final answer
    x = 54,011.43

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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.