Home / 76,201.78-105,157.35-42,210.16

Finding the Fourth Proportional to 76,201.78, 105,157.35 and 42,210.16

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Solution

The fourth proportional to 76,201.78, 105,157.35 and 42,210.16 is: 58,249.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,201.78 : 105,157.35 = 42,210.16 : x
  2. Step 2: Convert to fraction form
    76,201.78/105,157.35 = 42,210.16/x
  3. Step 3: Cross multiply
    76,201.78x = 105,157.35 × 42,210.16
  4. Step 4: Simplify right side
    76,201.78x = 4,438,708,568.68
  5. Step 5: Solve for x
    x = 4,438,708,568.68/76,201.78
  6. Step 6: Final answer
    x = 58,249.41

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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.