Home / 70,089.03-105,147.38-25,716.15

Finding the Fourth Proportional to 70,089.03, 105,147.38 and 25,716.15

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Solution

The fourth proportional to 70,089.03, 105,147.38 and 25,716.15 is: 38,579.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,089.03 : 105,147.38 = 25,716.15 : x
  2. Step 2: Convert to fraction form
    70,089.03/105,147.38 = 25,716.15/x
  3. Step 3: Cross multiply
    70,089.03x = 105,147.38 × 25,716.15
  4. Step 4: Simplify right side
    70,089.03x = 2,703,985,667.61
  5. Step 5: Solve for x
    x = 2,703,985,667.61/70,089.03
  6. Step 6: Final answer
    x = 38,579.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.