Home / 101,724.75-140,381.84-56,404.64

Finding the Fourth Proportional to 101,724.75, 140,381.84 and 56,404.64

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Solution

The fourth proportional to 101,724.75, 140,381.84 and 56,404.64 is: 77,839.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,724.75 : 140,381.84 = 56,404.64 : x
  2. Step 2: Convert to fraction form
    101,724.75/140,381.84 = 56,404.64/x
  3. Step 3: Cross multiply
    101,724.75x = 140,381.84 × 56,404.64
  4. Step 4: Simplify right side
    101,724.75x = 7,918,187,639.70
  5. Step 5: Solve for x
    x = 7,918,187,639.70/101,724.75
  6. Step 6: Final answer
    x = 77,839.34

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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.