Home / 85,465.83-128,213.33-26,300.19

Finding the Fourth Proportional to 85,465.83, 128,213.33 and 26,300.19

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Solution

The fourth proportional to 85,465.83, 128,213.33 and 26,300.19 is: 39,454.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,465.83 : 128,213.33 = 26,300.19 : x
  2. Step 2: Convert to fraction form
    85,465.83/128,213.33 = 26,300.19/x
  3. Step 3: Cross multiply
    85,465.83x = 128,213.33 × 26,300.19
  4. Step 4: Simplify right side
    85,465.83x = 3,372,035,436.77
  5. Step 5: Solve for x
    x = 3,372,035,436.77/85,465.83
  6. Step 6: Final answer
    x = 39,454.78

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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.