Home / 65,316.35-90,053.11-42,305.56

Finding the Fourth Proportional to 65,316.35, 90,053.11 and 42,305.56

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Solution

The fourth proportional to 65,316.35, 90,053.11 and 42,305.56 is: 58,327.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,316.35 : 90,053.11 = 42,305.56 : x
  2. Step 2: Convert to fraction form
    65,316.35/90,053.11 = 42,305.56/x
  3. Step 3: Cross multiply
    65,316.35x = 90,053.11 × 42,305.56
  4. Step 4: Simplify right side
    65,316.35x = 3,809,746,917.39
  5. Step 5: Solve for x
    x = 3,809,746,917.39/65,316.35
  6. Step 6: Final answer
    x = 58,327.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.