Home / 85,550.60-128,327.22-26,386.18

Finding the Fourth Proportional to 85,550.60, 128,327.22 and 26,386.18

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Solution

The fourth proportional to 85,550.60, 128,327.22 and 26,386.18 is: 39,579.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,550.60 : 128,327.22 = 26,386.18 : x
  2. Step 2: Convert to fraction form
    85,550.60/128,327.22 = 26,386.18/x
  3. Step 3: Cross multiply
    85,550.60x = 128,327.22 × 26,386.18
  4. Step 4: Simplify right side
    85,550.60x = 3,386,064,805.00
  5. Step 5: Solve for x
    x = 3,386,064,805.00/85,550.60
  6. Step 6: Final answer
    x = 39,579.67

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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.