Home / 86,370.42-129,555.63-49,408.50

Finding the Fourth Proportional to 86,370.42, 129,555.63 and 49,408.50

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Solution

The fourth proportional to 86,370.42, 129,555.63 and 49,408.50 is: 74,112.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,370.42 : 129,555.63 = 49,408.50 : x
  2. Step 2: Convert to fraction form
    86,370.42/129,555.63 = 49,408.50/x
  3. Step 3: Cross multiply
    86,370.42x = 129,555.63 × 49,408.50
  4. Step 4: Simplify right side
    86,370.42x = 6,401,149,344.86
  5. Step 5: Solve for x
    x = 6,401,149,344.86/86,370.42
  6. Step 6: Final answer
    x = 74,112.75

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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.