Home / 86,355.42-129,550.58-36,435.63

Finding the Fourth Proportional to 86,355.42, 129,550.58 and 36,435.63

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Solution

The fourth proportional to 86,355.42, 129,550.58 and 36,435.63 is: 54,660.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,355.42 : 129,550.58 = 36,435.63 : x
  2. Step 2: Convert to fraction form
    86,355.42/129,550.58 = 36,435.63/x
  3. Step 3: Cross multiply
    86,355.42x = 129,550.58 × 36,435.63
  4. Step 4: Simplify right side
    86,355.42x = 4,720,256,999.17
  5. Step 5: Solve for x
    x = 4,720,256,999.17/86,355.42
  6. Step 6: Final answer
    x = 54,660.81

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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.