Home / 85,580.47-128,372.46-26,416.18

Finding the Fourth Proportional to 85,580.47, 128,372.46 and 26,416.18

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Solution

The fourth proportional to 85,580.47, 128,372.46 and 26,416.18 is: 39,624.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,580.47 : 128,372.46 = 26,416.18 : x
  2. Step 2: Convert to fraction form
    85,580.47/128,372.46 = 26,416.18/x
  3. Step 3: Cross multiply
    85,580.47x = 128,372.46 × 26,416.18
  4. Step 4: Simplify right side
    85,580.47x = 3,391,110,010.40
  5. Step 5: Solve for x
    x = 3,391,110,010.40/85,580.47
  6. Step 6: Final answer
    x = 39,624.81

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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.