Home / 70,421.90-105,561.77-44,145.09

Finding the Fourth Proportional to 70,421.90, 105,561.77 and 44,145.09

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Solution

The fourth proportional to 70,421.90, 105,561.77 and 44,145.09 is: 66,173.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,421.90 : 105,561.77 = 44,145.09 : x
  2. Step 2: Convert to fraction form
    70,421.90/105,561.77 = 44,145.09/x
  3. Step 3: Cross multiply
    70,421.90x = 105,561.77 × 44,145.09
  4. Step 4: Simplify right side
    70,421.90x = 4,660,033,616.48
  5. Step 5: Solve for x
    x = 4,660,033,616.48/70,421.90
  6. Step 6: Final answer
    x = 66,173.08

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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.