Home / 86,451.96-129,681.90-32,429.55

Finding the Fourth Proportional to 86,451.96, 129,681.90 and 32,429.55

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Solution

The fourth proportional to 86,451.96, 129,681.90 and 32,429.55 is: 48,645.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,451.96 : 129,681.90 = 32,429.55 : x
  2. Step 2: Convert to fraction form
    86,451.96/129,681.90 = 32,429.55/x
  3. Step 3: Cross multiply
    86,451.96x = 129,681.90 × 32,429.55
  4. Step 4: Simplify right side
    86,451.96x = 4,205,525,508.20
  5. Step 5: Solve for x
    x = 4,205,525,508.20/86,451.96
  6. Step 6: Final answer
    x = 48,645.81

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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.